6th grade physics experiments

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1000 science fair projects with complete instructions.

71 Science Fair Projects for 6th Graders

Our collection of 6th grade science projects offer a fun and hands-on way for middle school students to explore a variety of fascinating science concepts.

6th Grade Science Fair Project FAQ

What are some easy 6th grade science fair projects.

Each one of these science fair projects are easy for sixth grade students to set up and do!

Burn Rate of a Candle

Soap and Surface Tension

Baking with Yeast

Color and Taste

Growing Mold

Cleaning Teeth: A Science Project

Comparing Blood Pressure

The Chocolate Rock Cycle

Uncovering Fall Colors

Making Oobleck: Liquid or Solid?

Science fair project details right above the FAQ!

What is the best 6th grade science project ever?

We love the Color and Taste science fair project for sixth grade students. The same flavored drink is made red, orange and purple with food coloring. When the three drinks are given to people, see what people taste! It's fascinating to see how color affects our perception of taste in this classic science experiment!

If you're looking for more 6th grade science projects, check out the 6th grade science fair projects at the top of this page! 

Check out more Best Science Fair Projects →

What are some cool 6th grade science fair projects?

Get ready to be amazed by these super cool science projects for 6th graders! With just a few simple things, sixth graders will see how fun and cool science is!

Does Music Help Plants Grow?

Dogs vs. Humans: Bacteria in the Mouth

Singing Glass

Fast Food Nutrition

Cleaning teeth: A Science Project

Video Games and Blood Pressure

Moisturizer Test

What are 5 testable questions for 6th grade?

A testable question is a question that we can answer through a science experiment. To do this, we do a control science experiment, then we change one thing in the experiment to see how it affects what happens. This is how we can discover the answer to our question!

What makes a cloud form?

Can drink and food taste different just by changing its color?

Does the color of light affect photosynthesis?

Does temperature affect seed sprouting?

What makes popcorn pop?

Here are more testable questions along with their science projects →

What are the top 10 science projects for 6th grade?

These are our top 10 science projects for 6th grade, with projects covering biology, chemistry, physics, medicine and health. These projects can be used as science fair project ideas or as a fun experiment to explore different areas of science!

Plant Growth: Hydroponics vs. Soil

Science project details above the FAQ!

Can I do a 6th grade science fair project in a day?

Yes! Quick experiments can be a great option for a science fair project! If you want to explore quick reactions, we have science project ideas on various topics to get you started.

Acids and bases: Test different fluids to see if they are an acid or a base!

Learn how to make your own acid/base indicator using red cabbage and use it to test different fluids! Make Your Own PH Indicator

Chromatography reactions: Separate out colors!

Have you ever wondered why leaves change color in the fall? Let's find out by using chromatography to separate the colors of a green leaf! Uncovering Fall Colors

Heat reactions: Heat speeds things up!

Ever wondered if a balloon filled with water can withstand fire? Fire-Resistant Balloons

What are some hands-on ways to find inspiration for my science fair project?

There may be free admission days or free passes to a science museum near you! Check your local library for free museum passes, nearby science museums for free entrance days and your credit card for offers.

Find a science museum near you and prepare to be awed by all that you can learn there! I always learn something new and am inspired whenever I go to a science museum!

How do I start a science fair project?

What should I do after I have a science fair project idea?

How do I make a science fair board?

What is the scientific method?

What is the engineering design process?

Where can I find a science fair competition?

The www Virtual Library: Science Fairs website also has a collection of science fairs from all over the world, as well as national, state, regional, local, and virtual competitions!

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Are you looking for science activities to do with your 6th graders? No sweat. We have you covered. Check out our list of 41 science projects and experiments that you can try with your 6th graders this month.

• How Do Antacids Work? | Biochemistry Discovery Lab – Grades 3-6, Simulate out how antacids work to treat heartburn by using fake stomach enzymes.
• Mice & Music | Hubpages.com – Grades 3-6, Find out if music affects the performance of mice in a maze.
• A Magnetic Primer Designer | Sciencebuddies.org – Grades 3-6 Biology project that utilizes magnets to mimic the process that scientists use to replicate DNA, using the polymerase chain reaction.
• Growing Bacteria in Petri Dishes | Stevespanglerscience.com – Grades 3-6 biology In this science fair project, you must find samples of bacteria from an assortment of surfaces to find the surfaces that are the dirtiest.
• Yeast Metabolism with and without Aeration | Sciencebuddies.org – Grades 6-8 Biology experiment that evaluates the effects of glucose metabolism in yeast.
• Aspirin Absorption in Carbohydrate Solutions | All-Science-Fair-Projects.com – Grades 6-8, Does aspirin absorb into the bloodstream quicker if taken with a carbohydrate food? Test aspirin dissolution in an assortment of carbohydrate solutions.
• Bacteria and Toothpaste | All-Science-Fair-Projects.com – Grades 6-8, Do you know which toothpaste cleans your teeth best? In this project, you will row bacteria from your recently brushed teeth in petri dishes to find out the answer.
• Effects of Ozone on Plants and Health | Julian’s Science Fair – Grades 4-6, Environmental conditions can dramatically impact plant growth and germination. Does increased ozone stunt germination and plant growth? Grow some plants and find out.
• Making Batteries from Fruits and Vegetables | Sciencebuddies.org – Grades 4-7, Use veggie power to build a simple battery from a variety of vegetables. Which ones are the most powerful?
• How Do Roots Grow When the Direction of Gravity Changes? | ScienceBuddies.org -Grades 6-10, Plants respond to gravity by stems that grow upward and roots that grow downward. Experiment with germinating seeds and rotate them to make up down and down up. How do you think the growing seedlings will respond?
• Hydroponics vs. Soil Growth | All-Science-Fair-Projects.com – Grades 6-8, In this project, students find out if plants grow better in soil or a hydroponic solution.
• Puppy Proportions: Your Dog’s Early Months | Sciencebuddies.org – Grades 6-8, Find out how a puppy’s weight, growth, and proportions change early in their lives.
• Do Migratory Birds Like It Hot? | Sciencebuddies.org – Grades 6-8, Pick a species of bird and determine if there is a correlation between air temperature and where and when the birds migrate.
• That’s a Real Smile! …or is it? | ScienceBuddies.org – Grades 6-8, Can people tell the difference between a fake smile and a real one? Gather information from dozens of volunteers to find out.
• Build a Raft Powered by Surface Tension | Sciencebuddies.org – Grades 6-10, Learn about the properties of surface water tension, and use it to propel a raft.
• Which Metal Is the Most Resistant to Corrosion? | Sciencebuddies.org – Grades 6-8, Test several kinds of metal exposed to the air, tap water, and saltwater to determine which are the most resistant to corrosion, and which substances are the most corrosive to them.
• Ionizing vs. Photoelectric Smoke Detectors | All-Science-Fair-Projects.com – Grades 6-8, Learn how smoke detectors work, and compare the effectiveness of ionizing smoke detectors to photoelectric smoke detectors.
• Robot Movement | Education.com – Grades 6-8, Construct a robot equipped with sound/touch sensor circuitry. Run it through a maze to find out if it displays sequential or random movement.
• Repurposed Designs | Education.com – Grades 6-8, Identify items that need repurposing such as e-waste, batteries, and mattresses. Then get creative and Invent your own original repurposed design.
• Solar-Powered Robot Bug | Sciencebuddies.org – Grades 6-8, Explore electronics and solar energy by building the Frightened Grasshopper, a solar-powered bug.
• Stressed Out with Beams | Sciencebuddies.org – Grades 6-8, Test the load-bearing capacity of several types of beams, including I-beams, U-beams, rectangular beams, and T-beams.
• Build a Gauss Rifle | ScienceBuddies.org – Grades 6-8, Use magnets and ball bearings to build a rifle based on magnetism. Investigate how many magnet and ball bearing “stages” affect the velocity and distance of the projectile.
• Smart Medicine Cabinet | ScienceBuddies.org – Grades 6-8, Do you know someone who needs to take medication daily? Create a sensor that reminds patients when to take their medication.
• Grow the Best and the Largest Crystals | Sciencebuddies.org – Grades 6-8, Figure out the best temperature for making the largest, purest crystals using water and borax.
• What’s the Fastest Way to Cool a Soda? | ScienceBuddies.org – Grades 6-8, Experiment with different ways to cool a can of soda.  Find out the fastest way to get your tall cold drink.
• How Much Potential Energy Do Different Nuts Have? | Education.com – Grades 6-8, Explore the energy of living things. Prove that different varieties of nuts produce electricity in a series of experiments.
• How Salty Does the Sea Have to Be for an Egg to Float? | ScienceBuddies.org – Grades 6-8, Figure out precisely what concentration of salt in water is required to make an egg float.
• Washing Detergent & Hydrophobic Soil | Education.com – Grades 6-8, Some soils do not absorb water very well.  Find out why and if washing detergent and change their ability to absorb water.
• Make Your Own Psychrometer | Sciencebuddies.org – Grades 6-8, Make a psychrometer to measure relative humidity, then use it to measure RH in a variety of weather conditions.
• Do Our Storm Drains Keep the Ocean Trash Free? | ScienceBuddies.org – Grades 6-8, Test your local grated storm drain inlets to see if they’re up to the task of keeping plastic litter out of your community’s stormwater drainage system. If they’re not, work on improving the design.
• Can Water Float on Water? | ScienceBuddies.org – Grades 6-8, Can liquid water float on liquid water? Investigate how the density of water is affected by its temperature and salinity.
• What Weather Factors Create Radiation Fog? | Sciencebuddies.org – Grades 6-8, Make systematic observations about the weather conditions needed to create radiation fog. Can you forecast when and where it will occur?
• The Science Behind Tsunamis | Sciencebuddies.org – Grades 6-8, Study the effect of water depth on wave velocity. Learn how tsunamis form and create your own simulation model wave tank to generate a tsunami.
• Killing ‘Vampires’: Saving Money and Power | Sciencebuddies.org – Grades 6-8, In this project, you’ll identify electricity “vampires” in your home, such as computer peripherals and electronic equipment, that use power even when not in use. Find out exactly how much energy they use. Use this eye-opening data to help your family save money on electricity.
• Which Wheels Work Best? | Education.com – Grades 6-9, Experiment with how different kinds of wheels affect the speed of a skateboard.  You’ll calculate friction co-efficient and its correlation to velocity.
• Test the Efficiency of a Solar Cell? | Education.com – Grades 6-9, Find out how much of the energy from the sun that reaches a photovoltaic cell is changed over into electricity.  Predict how to position solar cells for maximum conversion.
• How Acidic Waters Make Rocks Disappear | Sciencebuddies.org – Grades 6-10, Soak some limestone rocks in varying amounts of acidic water.  Determine how much acidity is needed to make them dissolve.
• Seafloor Spreading | Education.com – Grades 6-12, Use an oatmeal box and some paper to demonstrate seafloor spreading.
• Storytelling Alice | Sciencebuddies.org – Grades 6-12, Create your own computer-animated story using Carnegie Mellon’s 3D programming software. You’ll learn computer programming with easy-to-use drag and drop tools.
• Modeling Darcy’s Law | Education.com – Grades 6-12, Model the underground movement of water, utilizing Darcy’s Law.

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57 science project ideas for 6th grade.

Are you looking for engaging science projects that hold the attention of your sixth-graders? Look nowhere else! Explore this fascinating collection of 57 exciting science project suggestions that help students better grasp the world around them.

Starting a science project is an excellent method to develop young minds and a love of exploration. Students in the sixth grade are at a receptive stage and eager to explore the wonders of science.

Here is a thorough list of 57 science project ideas for the 6th grade to encourage curiosity and inventiveness.

These initiatives, which range from ecological research to chemistry experiments, promise to be educational and entertaining, turning science into a thrilling journey

Discover 57 Engaging Science Project Ideas for 6th Graders.

With the help of these fascinating and instructive science project ideas suited for sixth graders, you may unlock the universe of scientific exploration.

These practical tasks are intended to pique curiosity, inspire creativity, and build a greater understanding of the natural world.

They range from riddles surrounding plant growth to physics problems.

Embark on a journey with 57 science project ideas tailored for 6th graders that are ideal for young minds eager to solve the universe’s mysteries as we plunge into a world of discovery:

1. Electric Circuits and Conductivity

In the sixth grade, delving into electricity became an insightful trip. Students learn the foundations of current flow by building straightforward circuits and conducting experiments with various conductive materials.

They discover the enchantment of closed loops when they see lights go on and buzzers sound. This practical investigation piques interest and opens the door to better comprehending how our technology world operates.

Students learn more about the unique conducting characteristics of many materials, including non-metals and metals.

They experiment with circuit elements to see how conductivity affects current strength.

This enables students to choose materials wisely in practical applications, such as wiring homes or creating technological devices.

The realm of electric circuits and conductivity opens young minds, allowing them to understand the unseen forces that influence our lives.

This fascinating voyage is a launching pad for more difficult scientific investigations and a solid basis for comprehending intricate electrical systems.

2. Paper Airplane Angles

Using paper airplane angles, sixth graders explore the world of aerodynamics and flight physics.

They practice folding and bending to see how changing angles affect flying patterns.

This hands-on method turns regular paper into a tool for comprehending lift, drag, and gravity in motion.

Students learn the importance of angle modifications in getting the best flight distance and stability through trial and error.

They know the secrets of various aircraft designs and their distinctive flight characteristics as they hone the skill of precise folding.

These realizations give physics a concrete and thrilling quality.

Investigating paper airplane angles transforms regular paper into flying marvels and piques one’s interest in the concepts underlying flight.

Through this practical learning, young minds yearning to soar to the heights of knowledge can develop an appreciation for the grace of aerodynamics.

3. Pendulum Motion Exploration

The sixth graders swing into the realm of pendulum motion and plunge into the hypnotic dance between gravity and inertia.

They see the regular back-and-forth rhythm that characterizes pendulum motion through experimentation.

This investigation reveals the beauty of straightforward harmonic motion and provides a concrete link to physical rules.

Students learn about the complex link between these elements and the period of motion by adjusting variables such as pendulum length and weight.

This dynamic process turns intangible ideas into observable phenomena, encouraging a greater understanding of how physics and math play a part in understanding the natural world.

The rhythmic swing of the pendulum connects with the 6th graders’ inquisitive minds and aligns them with the basic tenets of motion.

They learn that even the most fundamental objects contain hidden meanings as they participate in this fascinating study.

Science becomes a physical adventure that combines interest and discovery through pendulum motion.

4. Ball Drop and Bounce Height

In sixth grade, students start an experiment combining excitement and physics as they explore motion mechanics.

They explore the worlds of gravity and energy transformation by dropping balls from various heights and recording bounce heights.

This exciting experiment turns the classroom into a science playground where each bounce contains a physics lesson.

Students discover the continuous association between initial drop height and bounce height by analyzing data gathered from various drops.

This investigation illustrates the complex interplay between potential and kinetic energy throughout the fall and rebound, reinforcing the concept of conservation of energy.

Sixth graders discover the wonders of energy transformation concealed within a routine drop as balls soar and rebound.

This practical experience with physics helps to bridge the gap between theory and practice and stokes interest in the laws that govern our universe.

Students launch into a world of scientific wonder and discovery through the ball drop experiment.

5. Roller Coaster Energy

The exhilaration of roller coasters and energy science collide in this sixth-grade investigation. Students explore the transformation between potential and kinetic energy as they design and build small roller coasters.

They embark on an engaging voyage with this hands-on activity that reveals the physics behind these exhilarating rides via twists, turns, and loops.

Students can see the dynamic energy transfers in action by modifying track designs and tracking speed variations.

They understand how the coaster’s highest point’s potential energy changes into kinetic energy during the drop.

In addition to demystifying the science behind roller coasters, this experience improves their comprehension of energy conservation.

Building roller coasters transforms the theme park into a scientific research area.

Sixth-grade students observe the fascinating interaction of energy forms when they race marbles around curves and hills.

This interactive tour serves as a reminder that learning and excitement go hand in hand and instill a lasting respect for the physics that makes roller coasters fascinating.

6. Rainbow in a Jar

To produce a rainbow in a jar, sixth graders capture the essence of color and density.

They observe the beauty of light refraction by carefully layering liquids of various thicknesses.

This fascinating experiment increases their grasp of how light interacts with matter and reveals the artistry of physics.

Students may see how light bends as it passes through various media through this practical experience.

Each layer simulates a prism-like effect that scatters light into a rainbow of colors.

This project helps students understand the natural phenomena that cause rainbows, fostering a connection between science and aesthetics.

Making a rainbow in a jar emphasizes the beauty of physics in our daily lives while bringing delight into the classroom.

Students in the sixth grade discover science and aesthetics as they watch light dance across layers of liquids.

By bridging the gap between the observable and the scientific, this experiment creates a clear image of the fascinating complexity of the world.

7. Household Substances’ pH

Sixth-grade students explore the realm of home material pH, from the kitchen to the bathroom.

Using straightforward assays, they determine if things are essential, neutral, or acidic.

The pupils’ connections between pH levels and commonplace objects like soap and lemon juice help to bridge the gap between science and everyday life.

Students learn about pH scales and fluctuations in acidity first-hand by using indicators and witnessing color changes.

This experiment emphasizes the importance of pH in maintaining balance and function while providing them with practical skills and encouraging critical thought about the chemistry underpinning daily activities.

Students in the sixth grade become chemistry investigators in their homes as they learn about the pH spectrum.

This immersive encounter fosters a stronger bond between science and the environment.

This investigation prepares the way for a lifetime appreciation of the chemical wonders around us, from testing everyday household items to comprehending the significance of pH management in nature.

8. Chemical Reaction Rates

Sixth graders delve into the fascinating world of chemical reaction rates as they examine the dynamic field of chemistry.

They discover the secret pace at which molecules change by combining and observing changes.

This tour reveals the forces at work in routine activities like baking and rust production, making science more approachable and exciting.

Students do practical experiments where they change elements like temperature, concentration, and catalysts to observe how they affect reaction speeds.

By providing new insights into collision theory and activation energy, this investigation helps us better understand the variables that control chemical processes.

By bridging theory and practice, studying chemical reaction rates helps budding scientists understand the complex dance of molecules.

They learn how minor adjustments can have significant effects as they watch reactions develop at various speeds.

By enabling sixth graders to view the world through a molecular lens, this voyage fosters a curiosity that drives students further into the mysteries of chemistry.

9. Crystal Growth

Sixth graders sail through an enthralling transformation as they explore crystal growth.

They watch the emergence of complex structures that change over time through the careful control of solutions and diligent monitoring.

This investigation not only demonstrates the exquisite architectural accuracy of nature but also familiarises aspiring scientists with the ideas of solubility and supersaturation.

Students learn how to control crystal size and structure by manipulating variables like temperature and concentration.

This practical experience encourages pupils to recognize patterns in crystalline formations and provides a concrete connection to chemical ideas.

They reveal the mysteries of mineral growth that have captivated scientists for ages as they nurture crystals into life.

Growing crystals gives young minds a tremendous understanding of the delicate artistry seen in the natural world.

The development of crystals reveals the mesmerizing dance of molecules and sparks curiosity beyond the classroom.

This investigation is a beautiful example of how science and nature’s sophisticated designs may coexist in harmony.

10. Density Tower

Sixth graders create a compelling density tower as a visual masterpiece while delving into the concept of density.

They reveal the wonder of physics and fluid mechanics by meticulously arranging liquids with various densities.

Due to the liquids’ continued suspension in different layers, which highlights each substance’s distinctive properties, this practical activity turns science into art.

This experiment teaches Students about the interaction between mass and volume, which affects a substance’s density.

They see the use of the buoyancy principle as they build their density towers, watching as less dense liquids float on top of denser ones.

This investigation links theory and practice while generating a profound respect for physics’ wonders.

The density tower project goes beyond conventional education by clearly illustrating imprecise scientific ideas.

Students in the sixth grade build vibrant layers of liquids to produce a stunning image while also learning the nuances of density and fluid behavior.

This practical experience serves as a reminder that science is an undiscovered art.

11. Plant Growth Conditions

Students in sixth grade explore the field of horticulture by looking into how various environmental factors affect plant growth.

They decipher the elements that affect a plant’s growth and health through carefully controlled tests using different light, water, and soil conditions.

They get to see the effects of environmental factors firsthand, bringing them closer to nature’s wonders.

Students carefully adjust water frequency and light intensity to see how plants react to their environment.

This practical project highlights how crucial it is to create the ideal atmosphere for healthy growth.

As they grow plants under varied settings, they learn about the complex interactions between plants and their environment and gain a fresh appreciation for them.

In addition to providing sixth graders with horticulture knowledge, the experience of experimenting with plant development conditions also strengthens their bond with fragile ecosystems.

As students take care of plants in various environments, they develop a respect for the natural world’s adaptability and resiliency.

This investigation is a first step towards figuring out how we might maintain the beauty and vitality of our world.

12. Photosynthesis Investigation

Sixth-grade students dig into photosynthesis, the mysterious process that powers our planet, as they explore the world of green wonders.

They discover the mechanisms underlying plants’ ability to produce energy by experimenting with light, leaves, and carbon dioxide.

This investigation reveals the crucial function sunshine and chlorophyll play in converting carbon dioxide into oxygen.

Students learn about the complex dance of molecules through hands-on activities, as light energy drives the transformation of water and carbon dioxide into glucose and oxygen.

This tour emphasizes the significance of life’s interdependence on Earth and plants in preserving a healthy ecosystem.

Sixth-grade students learn about the symbiotic relationship between plants and the environment through photosynthesis.

This inquiry inspires a respect for the beauty of nature’s workings and knowledge of the complex systems that sustain life on Earth.

Plants are a constant reminder of the wonder that science has woven into our environment by catching the essence of sunshine and converting it into energy that sustains life.

13. Insect or Amphibian Lifecycles

Sixth graders embark on a metamorphosis trip as they investigate the fascinating life cycles of insects or amphibians.

They discover the stages of development from egg to adult via observation and study, in awe of the wonders of nature’s growth and adaptation.

This investigation sheds light on these organisms’ various techniques to survive in their dynamic habitats.

Students learn how insects or amphibians adjust to their environment as they study each lifecycle stage.

This tour highlights the complex interplay between survival and reproduction in the natural world, from the fascinating molting process to the delicate dance of mating rituals.

Investigating insect or amphibian life cycles allows sixth graders to see the complex drama of adaptation and evolution.

They sincerely appreciate the various methods life uses to survive and flourish by seeing the changes these organisms undergo.

This voyage awakens a sense of wonder and compassion for the numerous stories playing out in the tucked-away places of our ecosystems.

14. Bird Eating Habits Survey

Sixth graders start an exciting inquiry into birds’ food preferences with binoculars in hand.

They get insight into the fragile equilibrium of predator and prey in the natural environment by studying and documenting the diets of various bird species.

This investigation reveals the many tactics birds use to get their mark and emphasizes their crucial role in maintaining environmental balance.

Students conduct detailed surveys to identify trends in bird nutrition and relate those patterns to environmental elements like habitat and season.

This tour highlights the profound interdependence of species and the implications of dietary decisions on the entire food web.

Sixth graders can gain a unique perspective on the dynamics of nature’s dining room by studying the eating habits of birds.

This research not only demonstrates the resilience of birds but also encourages an understanding of how interrelated all life is.

Young scientists embrace the complexity of ecosystems and each species’ part in forming the intricate fabric of life as they reveal the tales of beaks and bites.

15. Model Water Cycle

Sixth graders go on a hands-on adventure to simulate the water cycle while focusing on Earth’s hydrological ballet.

They provide life to the dynamic process that keeps our planet alive by imitating evaporation, condensation, and precipitation.

This investigation reveals the pattern of water’s motion while emphasizing its transition from liquid to vapor and back again.

Students learn about the effects of temperature variations and other environmental factors on the complex dance of the water cycle through experimentation.

This trip helps people comprehend how water connects land, air, and life, sculpting landscapes and maintaining ecosystems worldwide.

Students in the sixth grade engage themselves in the constant rhythm that sustains life on Earth as they shape the model water cycle.

This encounter clarifies the complexities of precipitation and highlights how valuable this resource is for supporting life.

Young scientists learn to care for the environment by engaging with the water cycle and enjoying the beautiful dance of nature’s hydrological masterpiece.

16. Music’s Effect on Plant Growth

Sixth-grade students investigate the fascinating relationship between music and plant growth in a harmonious twist.

They examine whether melodies can have a “green thumb” impact by exposing plants to various genres and rhythms.

This investigation combines science and creativity to dive into the fields of botany and sound to uncover nature’s potential reactions to musical vibrations.

Students collect information on plant growth rates in response to various musical stimuli through meticulous observation and measurement.

This investigation explains the relationship between sound waves and the physiological procedures of photosynthesis and cell growth, provoking the observers to consider that music impacts the environment.

Students combine science with creativity in this experiment, and students gain a deeper grasp of plant physiology.

They get an awareness of the complex interactions that make up life’s great orchestra as a result of this mellow investigation, which connects with the glories of nature.

17. Erosion Simulation

Students dive into Earth’s geological past and take a tactile trip to imitate erosion.

They imitate the forces that sculpt landscapes throughout time by harnessing the power of water and wind.

This investigation sheds light on the delicate dance between the parties of nature and the planet’s shifting surface.

Students change miniature landscapes via hands-on experimentation to see how erosion alters them.

They look at how the movement of wind and rain shapes mountains, canyons, and valleys.

This technique helps understand Earth’s dynamic evolution better while revealing the significant effects of natural forces.

Young geologists learn how wind and water sculpted our planet’s features as they participate in the erosion simulation.

This expedition reminds them that the Earth is a moving canvas on which the elements have painted the world’s history.

This practical experience sparks an interest in geology and a connection to the complex processes that have created Earth’s breathtaking landscapes.

18. Soil Composition Analysis

Students set out on a mission to unravel the mysteries of soil composition by sifting under the surface.

They discover the complex admixture of minerals, organic matter, water, and air that is the basis of life on Earth by taking samples and conducting experiments.

This investigation reveals the complexity beyond the surface of seemingly everyday dirt.

Students closely examine various soil types to see how they affect ecosystems, support plant development, and retain moisture.

They gain an understanding of the delicate balance that supports biodiversity and agricultural productivity by looking at the texture, structure, and pH of the soil.

This tour serves as a reminder of soil’s critical function in sustaining all life.

The study of soil composition introduces sixth graders to a world brimming with complexities and connections.

This investigation highlights the importance of the Earth’s skin and its critical function in supplying nutrients and stability for the survival of life.

Young scientists deeply respect the undiscovered beauties beneath our feet as they reveal the stories concealed in the soil.

19. Formation of Fossils

The allure of time travel draws sixth graders as they travel back in time to solve the mystery of fossil formation.

They learn how the remains of prehistoric life are preserved in stone by reenacting previous procedures.

By turning rocks into time capsules, this exploration reveals snippets of Earth’s past and the species that previously inhabited its surface.

Through practical experiments, students understand how minerals penetrate organic materials and progressively change them into fossils.

They investigate the intricate interplay between geological forces and the fossilized remnants of ancient organisms, revealing the dance of sedimentation and petrification.

This voyage across time reveals the echoes of life’s trek throughout Earth.

Students embark on an exciting journey across historical eras while studying fossil formation.

This investigation piques interest in Earth’s past and fosters knowledge of the complex mechanisms that give it existence.

Young paleontologists can connect with the prehistoric people who once lived on our planet by working with fossils, instilling a timeless sense of wonder.

20. Moon Phases and Tides

Students look to the skies as they investigate the rhythmic dance between the Earth, the moon, and the tides.

They reveal the fascinating interaction between celestial bodies and our planet’s oceans by following the moon’s orbit and observing how it affects oceanic patterns.

This investigation focuses on the sky and exposes the gravitational dance that molds our planet.

Students gain an understanding of how the gravitational pull of the moon on Earth’s oceans, which causes the ebb and flow of tides, via observation and study.

They discover the relationship between lunar phases and tidal patterns and how this affects human activity and coastal ecosystems.

Studying tides and moon phases draws sixth graders into a cosmic ballet that links the celestial and terrestrial spheres.

This investigation highlights the significant impact of the moon on our daily lives while also fostering an understanding of the effects of gravity.

Looking above, young astronomers can understand the far-reaching consequences of the moon’s gentle pull on our watery planet.

21. Stars and Constellations Observation

Students go on a stargazing expedition to learn about stars and constellations while looking into the cosmos.

They map celestial patterns that have guided navigators for millennia using telescopes and their natural curiosity.

A connection to the immensity of space and the tales the glittering stars above tell them through this adventure takes them beyond the confines of Earth.

Through careful observation, students recognize notable constellations and follow the narratives that have weaved them into cultural tapestries.

They gain a greater understanding of how mythology, science, and the human imagination interact through this practical experience, which feeds their interest in astronomy.

Studying the stars and constellations entices sixth graders to practice the age-old hobby of stargazing.

This adventure cultivates a timeless feeling of wonder in addition to arousing interest in the cosmos.

Young astronomers become celestial storytellers by developing a connection with the stars and deciphering the storylines engraved across the night sky.

22. Solar System Model

The sixth graders build their solar systems as cosmic architects, transforming the classrooms into creative galaxies.

They build models that reflect the intricacy of our solar system by investigating planets, moons, and other celestial bodies.

This interactive activity turns theoretical ideas about worlds into real.

Students learn about planets’ relative sizes, distances, and orbital routes through their models.

They are up for the challenge of depicting the complex dynamics that form the sky while juggling creative expression with scientific correctness.

This investigation sparks a fascination with the size and variety of our little universe.

The building of solar system models allows students to design their celestial spheres.

This investigation broadens their comprehension of the cosmos and ignites a passion for astronomy.

Young astronomers connect with the mysteries and wonders that dance across the vastness of space by giving form to the cosmos.

23. Light Pollution Experiment

Students in sixth grade switch their attention from the stars to the bright glow of Earth as they engage in a thought-provoking light pollution project.

They investigate the effects of artificial light on our nocturnal environment using measurement methods.

This investigation illuminates a contemporary issue by demonstrating how our cities’ brilliance impacts human and wildlife habitats.

Students gauge the level of light pollution in various locales through data gathering and analysis.

They examine how too much artificial light interferes with circadian rhythms and influences the behavior of nocturnal animals, highlighting the necessity for prudent lighting practices.

The light pollution experiment challenges sixth graders to protect the midnight splendor of our world.

This investigation makes people more aware of the adverse effects of excessive artificial light.

It gives them the tools to promote policies that balance meeting human needs and preserving the nighttime hours.

By participating in this project, young environmentalists enlighten a road to peaceful coexistence between light and night.

24. Moon Phases with Oreos

Students embark on a delicious trip to replicate moon phases using Oreos by transforming biscuits into cosmic equipment.

They learn about lunar cycles through practical exercises and use sweets as scientific models to explain the moon’s shifting appearance.

This investigation makes heavenly ideas concrete and enticing by fusing humor with astronomy.

Students learn how the relative positions of the sun, Earth, and moon produce the phases we can observe from our planet as they bend and scrape their edible moon models.

This method fosters a greater understanding of the dynamic interaction between celestial bodies by demystifying the waxing and waning moon.

A delicious method for sixth graders to learn about lunar cycles is through the moon phases with the Oreos project.

By bridging the distance between plate and sky, this practical experience brings cosmic rhythms to life in an exciting and relevant way.

Young astronomers get a taste of comprehending the ever-changing celestial dance above as they savor the science underlying moon phases.

25. Gravity Comparison (Earth vs. Moon)

As sixth graders investigate the gravitational contrast between Earth and its planetary neighbor, the Moon, a cosmic struggle of forces takes center stage.

Through inquiry and mathematics, they discover how this unique gravitational attraction variation shapes each surface’s weight and movement.

Students learn about gravitational acceleration and how the Moon’s reduced gravity enables lighter loads and higher jumps.

They look at how this distinction has affected the development of life on each celestial body, from the thriving ecosystems on Earth to the arid surface of the Moon.

The gravity comparison tour teaches Sixth-grade students about a dynamic force that molds worlds.

This investigation demonstrates gravity’s enormous effects on daily life and piques our interest in the celestial mechanics that control our cosmos.

Young scientists compare Earth and Moon in a gravitational odyssey that connects Earthly realities with cosmic wonders.

26. Water Quality and Pollution

Students delve beneath the surface into the complex world of water quality and contamination.

They demonstrate the delicate balance between clean and polluted water sources through observation and analysis.

This investigation helps people comprehend the significance of water in supporting life and the pressing necessity to preserve its purity.

Students test the local water bodies to assess pH, turbidity and dissolved oxygen levels.

They face the sad truth of how human activity, from chemical contaminants to plastic garbage, affects water quality.

They get the information necessary from this exploration to become ardent protectors of the planet’s priceless water resources.

The study of pollution and water quality equips sixth graders to protect aquatic environments.

This investigation not only highlights how vulnerable our water sources are but also fosters a sense of obligation to protect the blue gems of the planet.

Young environmentalists set out on a voyage of conservation and stewardship as they interact with the hidden world of water.

27. Material Decomposition Rates

Students in the sixth grade will explore material breakdown rates, taking them inside nature’s recycling center.

They explore how various materials degrade over time with a keen curiosity and scientific inquiry, revealing the ecological significance of decomposition in the nutrient cycle.

Through controlled experiments, students investigate the effects of variables such as temperature, moisture, and microbial activity on the decomposition process.

This interactive tour reveals the complex interactions between living things and their surroundings, emphasizing how linked life and death are in ecosystems.

Studying material decomposition rates allows sixth graders to observe nature’s intricate cycle of death and rebirth.

This investigation highlights the critical function of decomposition in sustaining ecological harmony and feeding life.

By participating in this process, young ecologists embrace the natural cycles and strengthen their connection to the complex web of life.

28. Composting Benefits

Students explore the benefits of composting, from food scraps to garden gold.

They demonstrate the transformative power of decomposition by converting organic waste into nutrient-rich soil.

This investigation shows how people may contribute to the planet’s recycling efforts by bridging the gap between waste minimization and environmentally friendly gardening techniques.

Through composting experiments, students learn how organic matter breaks down to produce nutrient-dense compost that improves soil fertility.

A greater awareness of the symbiotic relationship between people and the environment is fostered as they investigate how this practice decreases garbage transported to landfills and nourishes gardens.

The knowledge of the advantages of composting equips sixth-graders to take up environmental savagery in their backyards.

This investigation promotes a sense of accountability for sustainable living while simultaneously highlighting the benefits of waste reduction.

They plant the seeds of change as future Earth guardians by turning organic waste into a valuable resource for feeding the world.

29. Wind Turbine or Solar Cooker

Sixth graders will decide between utilizing renewable energy sources like wind and solar or using their creative cooking skills.

This investigation goes into environmentally friendly technology and inventive cuisine, providing insights into the potency of renewable resources and the practice of creative energy use.

Students learn how to turn wind into electricity as they investigate wind turbines.

On the other hand, examining solar cookers exposes the unique method of using sunlight to produce gastronomic pleasures.

They develop a comprehensive grasp of how these technologies serve the requirements of humans and the environment through testing and study.

Students in sixth grade have a decision to make on the wind turbine or solar cooker inquiry that goes beyond practicality and explores responsible resource use.

This voyage not only enlightens them about the possibilities of sustainable technology and creative cooking techniques but also equips them with the knowledge and skills necessary to make decisions that support a greener and more sustainable future.

30. Packaging and Food Preservation

Students dive into the fascinating topic of food preservation while uncovering the hidden function of packaging.

They discover the delicate balance between safeguarding commodities and reducing waste by examining the effect of various packing materials on food freshness.

This investigation fills the gap between customer preferences and packing practices’ environmental impact.

Students conduct experiments investigating how food packaging affects food quality, nutritional value, and shelf life.

They face the issue of juggling preservation with environmental concerns, exposing the need for environmentally friendly packaging options that protect both food and the environment.

Students in sixth grade understand the crucial intersection of consumerism and sustainability via their study of packaging and food preservation.

This investigation highlights the significance of making appropriate packaging decisions while encouraging awareness of our environmental effects.

They embrace their ability to make decisions that promote both their health and the health of the Earth as youthful, eco-aware customers.

31. Exercise and Heart Rate

As students investigate the relationship between exercise and heart rate, a rhythmic investigation of human physiology occurs.

They explore the complex link between effort and cardiovascular response by exercising while monitoring their heart rates.

This trip connects the worlds of biology and wellness, developing an awareness of how physical activity affects the body’s essential engine.

Students learn how different types of exercise, such as brisk walking or jumping jacks, affect heart rate variability through measurement and analysis.

They discover the link between a higher heart rate and better cardiovascular health, realizing the enormous advantages of regular exercise.

Students in the sixth grade get passionate about holistic health after learning about exercise and heart rate.

Along with highlighting the value of keeping active, this journey also equips children with the information they need to make wise decisions regarding their health.

Young fitness enthusiasts start toward a healthier and more active lifestyle by realizing the dynamic interplay between activity and heart rate.

32. Blind Taste Tests

Blind tasting tests will take sixth graders on a sensory journey as they explore the complexity of flavor perception.

By doing away with visual clues, they study the world of taste and the complex interactions between taste, smell, and texture.

This investigation transforms food into an experience trip to disprove presumptions and hone senses.

Students participate in blind taste tests as part of controlled investigations to determine the effect of visual information on flavor perception.

They realize how expectations affect the taste as they explore the unexpected results that follow the removal of visual biases.

This trip emphasizes the individuality of flavor experiences and the multi-sensory nature of eating.

Students have a new perspective on their relationship with food due to the blind taste test trip.

In addition to improving their sensory awareness, this exploration encourages a mindful eating style.

Young food explorers enjoy a variety of taste experiences and gain a deeper understanding of the subtleties of the palate by embracing the complexity of flavor perception.

33. Hand Washing and Germ Spread

Sixth graders embark on a hygiene trip that explores the science of hand washing and the fascinating field of germ transmission.

They discover the significance of good hand hygiene in preventing illnesses and preserving public health by delving into the complexities of germs and the efficacy of soap and water.

Through experiments and simulations, students understand how germs travel and how proper hand washing affects that transmission.

This investigation highlights how crucial individual responsibility is in preserving a healthy environment.

The sixth graders become hygiene superheroes after learning about hand washing and the spread of germs.

Along with teaching children healthy habits, this voyage also gives them the confidence to promote cleanliness and good health.

Young health enthusiasts promote a cleaner, safer world for themselves and others by understanding the science behind the suds.

34. Reaction Time and Reflexes

Students will explore response time and reflexes as they explore the world of neurology.

They demonstrate the complicated relationship between sensory information, brain processing, and physical reactions through experiments and exercises.

This investigation transforms the body into a laboratory, revealing the exciting interaction between the nervous system and outside stimuli.

Through timed experiments, students see how factors like age, the nature of the stimulus, and distraction affect reaction time.

They reveal the adaptable nature of reflexes and the body’s unique capacity to respond quickly to danger.

The study of reflexes and response times gives sixth graders a peek at the inner workings of the neurological system.

This trip gives them a deeper appreciation for the body’s remarkable reactivity and the intricate coordination of senses and communications.

Young neuroscientists begin on a route of exploration that reveals the body’s extraordinary resilience by embracing the science of reflexes.

35. Music’s Impact on Concentration

Students investigate the connection between music and attentiveness as they tune into an intriguing inquiry.

They perform trials and surveys to examine whether melodies aid in or interfere with focus.

This investigation shows how sound and brain activity interact by fusing musical harmony with cognitive performance rhythms.

Students identify trends in how various musical genres and tempos influence concentration levels through data analysis.

They investigate the potential of music as a tool for improving learning environments and learn how personal preferences affect how melodies affect attention.

In sixth graders, investigating music’s effects on concentration combines science and creativity.

This investigation piques their interest in the relationship between sound and cognition and allows them to choose their study environments carefully.

Young scholars set out on a path to effective learning and focused involvement by coming to comprehend the melodies of the mind.

36. Simple Household Robot

Sixth graders will embark on an innovation and technology journey as they develop and delve into the world of a basic domestic robot.

They combine creative and technical principles by creating a prototype for everyday chores.

This investigation uses the home as a laboratory to illustrate how automation may streamline routines and improve convenience.

Students give their robots life by programming them to perform tasks like cleaning, sorting, or fetching goods through design and testing.

They learn about sensors, motors, and logical programming as they explore the origins of robotics.

Their experience gives them the ability to see the future of intelligent living.

Students become aspiring technicians and creators after building a straightforward home robot.

This investigation not only fills the gap between theory and practice but also piques their interest in the virtually endless applications of robotics.

Young engineers build the foundation for a society where technology improves daily living by making innovation a reality.

37. Color and Temperature Absorption

Students dive into the fascinating world of colour and temperature absorption as they embark on a colourful exploration.

They discover the fascinating interplay between pigments and energy by examining how various colours absorb and reflect heat.

This experiment invites budding scientists to decipher the vibrant language of heat exchange by converting colours into thermodynamic hints.

Students conduct controlled experiments and measurements to measure temperature changes after exposing coloured surfaces to sunlight.

They investigate how some colours have higher temperatures because they absorb more energy, whereas others have lower temperatures because of their reflective qualities.

Through their use of radiant physics, they make clear the complex dance between light and heat.

Students gain knowledge of how the environment interacts with energy through the study of colour and temperature absorption.

This journey piques one’s interest in light physics and cultivates appreciation for colour’s function in our everyday lives.

Young explorers discover the relationship between colours and heat through interaction with the science of absorption, creating a vibrant symphony of knowledge.

38. Simple Machine Models

Sixth graders build simple machine models demonstrating the strength of levers, pulleys, and inclined planes as they delve into the mechanics of daily life.

They transform classrooms into engineering laboratories by conducting experiments with real-world applications.

This investigation turns intangible ideas into actual technologies that increase power and improve human potential.

Students work with simple machines through practical exercises to comprehend how they increase force and change force direction.

They look at how pulleys may facilitate work and how levers can lift big things, revealing the connection between mechanics and problem-solving.

The study of simple machine models equips sixth graders to become creative thinkers.

This investigation not only fills the gap between theory and practice but also piques their interest in the workings of the environment.

Young engineers develop a toolkit of ideas that open doors for innovation and discovery by working with simple machines.

39. Friction and Brake Materials

Students investigate the connection between friction and brake materials as part of a physics and safety excursion.

They uncover the rules governing vehicle stopping distances and the function of friction in maintaining control by examining how various surfaces interact when put under strain.

This investigation explores the crucial link between physics and driving safety.

Students quantify the frictional forces between different materials and investigate how these forces affect braking effectiveness through experiments and analysis.

They deal with the complexity of elements, including pressure, surface tension, and climatic circumstances, highlighting the necessity of good brake maintenance and design.

Students in the sixth grade gain a more robust understanding of physics and road safety by studying friction and braking materials.

This investigation helps to close the gap between science and daily life and cultivates a sense of duty for car maintenance and safe travel.

Young advocates for traffic safety develop into conscientious stewards of transportation by learning about the science of friction.

40. Spaghetti or Toothpick Bridge

Sixth-grade students go on an engineering journey by building bridges out of spaghetti or toothpicks.

They explore the concepts of stability, load distribution, and material strength by creating and testing structures.

Combining creativity and mechanical accuracy, this investigation turns everyday objects like wooden sticks or spaghetti into architectural wonders.

Through experimentation, students learn how to modify bridge designs to support weight without collapsing.

They learn about forces and the significance of load distribution across various bridge components as they investigate the harmony between aesthetics and structural integrity.

Students can become engineers and architects by constructing spaghetti or toothpick bridges.

This path highlights the importance of comprehending structural concepts and inspiring a love for design and problem-solving.

Young architects pave the way for a future where innovation and stability coexist by creating bridges that link art and science.

41. Plant Genetics Variation

Students embark on a botanical trip as they investigate the fascinating world of plant genetic variation.

They discover how inherited features and genetic variation affect the adaptation and resilience of plant communities.

By transforming seeds into windows into evolution, this investigation introduces students to the complex mechanisms that support biodiversity.

Through experiments and observations, students investigate the genetic diversity of plants by contrasting features, including leaf form, blossom color, and growth patterns; they look at how natural selection facilitates adaptation and how human activities affect plant variety in agricultural environments.

By studying plant genetic variation, sixth graders enter a world where science and the natural world collide.

This voyage piques one’s interest in evolution and genetic inheritance and cultivates an understanding of how interrelated all life is.

Young botanists appreciate the importance of biodiversity and their involvement in its preservation by becoming involved with the stories encoded in plants’ DNA.

42. Mold Growth Under Different Conditions

Students go on a microbiological excursion to investigate how molds grows in various environments.

By developing and studying decay in controlled situations, they discover how variables like temperature, humidity, and substrate affect fungal development.

Microscopic spores become windows of knowledge about the mysterious realm of microbiology thanks to this investigation.

Students adjust environmental factors through experiments to observe how mold grows or declines.

They examine how moisture and light might affect mold growth, demonstrating the delicate balance between mold’s role in decomposition and its potential for harm in enclosed spaces.

Studying mold growth in various environments turns sixth graders into microbiological investigators.

This tour highlights the interconnection of the natural world and fosters an understanding of the microscopic organisms that influence our environment.

Young scientists develop an appreciation for the tiny life forms that cohabit with us by learning about the mold life cycle.

43. Effects of Temperature on Gummy Candy

Students investigate how temperature affects gummy bears.

By exposing these delicious delicacies to various thermal settings, they discover how temperature affects texture, flavor, and overall appeal.

Combining chemistry and gastronomic curiosity, this investigation transforms sweets into scientific studies.

Through sensory analysis and observations, students investigate how temperature changes the molecular structure of gummy candies, impacting characteristics including hardness, melting, and taste.

They use the interdisciplinary character of this investigation to learn more about the chemical processes that occur when heat interacts with sweets.

Studying how temperature affects gummy candies enables sixth graders to enjoy the science of daily foods.

This adventure increases their interest in molecular changes and strengthens their bond with the culinary world.

Young diners embrace the complexity of the world around them by becoming involved with the flavors of science.

44. Antacid Tablet Reaction Rates

Students take a fizzing trip into the antacid tablet response rates world.

They discover how variables like temperature and surface area affect the rate of enthusiasm by experimenting with dissolving tablets and monitoring chemical reactions.

This investigation transforms tablets into inquiry catalysts by bridging the gap between chemistry and practical applications.

Students vary parameters like tablet size and water temperature through timed experiments to observe how these factors affect reaction rates.

They investigate chemical kinetics principles to comprehend how antacid tablets treat acid indigestion by causing quick chemical reactions to release carbon dioxide gas.

Sixth-grade students understand the dynamics of chemistry in action by studying antacid tablet reaction rates.

This voyage highlights scientific knowledge’s practical value while piquing curiosity about chemical processes.

Young scientists learn about the transformational potential of straightforward molecules in our daily lives by interacting with the fizz and foam of chemical reactions.

45. Battery Power and Lifespan

The sixth graders begin an exciting adventure to investigate battery life and power as they delve into energy storage.

They explore the realm of volts, amps, and electron flow by dissecting the chemistry of rechargeable and disposable batteries.

This investigation uses commonplace devices as entry points to comprehend energy conversion and the elements that affect battery life.

Students investigate how battery type, usage patterns, and charging procedures affect performance and longevity through experiments and analysis.

They highlight the significance of using and disposing of battery-powered gadgets while examining the importance of effective energy management.

Sixth graders gain knowledge of the core of modern technology through the study of battery life and electricity.

This tour encourages awareness of our part in sustainable energy consumption and stokes curiosity about energy storage.

Young energy enthusiasts can embrace the difficulties and opportunities of an electron-powered world by learning about the chemistry of batteries.

46. Soil Erosion Control Methods

Students start a journey into the world of soil erosion management techniques.

They explore the connections between land, water, and ecosystems by researching methods to stop the loss of priceless topsoil.

This investigation turns natural areas into active research sites, demonstrating how human actions can alter the environment’s delicate balance.

Through experiments and simulations, students practice soil erosion prevention methods like mulching, cover crops, and terracing.

To protect fertile land and lessen the effects of erosion on agricultural productivity, they discuss the critical role that vegetation and engineering solutions play.

The study of soil erosion control techniques equips sixth graders to take care of the surface of the Earth.

This tour emphasizes the value of land preservation and cultivates a sense of responsibility for the natural environments that support us.

Young environmentalists develop a stronger bond with the complex web of life on Earth by being involved in soil health methods.

47. Water Filtration Techniques

Students explore the topic of clean water by learning about water filtration methods.

They demonstrate the crucial importance of clean water in maintaining environmental harmony and human health by investigating techniques for removing toxins from water.

This investigation uses liquids to teach students about chemistry, engineering, and the worldwide value of readily available water resources.

Students learn about methods for water purification, such as sedimentation, filtration, and chemical treatment, through practical experiments.

They uncover the difficulties in converting contaminated water into potable supplies by examining the complicated interplay between particle size, chemical interactions, and purification efficiency.

The study of water filtration methods introduces sixth graders to a field where science and life support systems collide.

This voyage piques one’s interest in water chemistry and cultivates awareness of people’s difficulties in finding clean water sources.

Young water activists interested in the science of purification have become defenders of universal access and health.

48. Solar Still for Water Purification

As sixth graders investigate the solar still for water purification, an exploration into solar innovation occurs.

They bridge the gap between solar energy and sustainability by creating and testing a straightforward setup that turns contaminated water into a drinking beverage.

This research uses sunlight as a tool for technology that can save lives.

Students learn about the laws of evaporation and condensation through exploration, seeing firsthand how a solar still can use the sun’s energy to produce clean water.

They look at how this technology might help areas with little resources deal with water shortages and give access to clean water.

Students can link solar energy with humanitarian innovation by studying the solar still for water purification.

This voyage highlights the promise of renewable resources while raising awareness of the world’s water supply problems.

Young solar pioneers are paving the way for a world where clean water is available everywhere by working with technology that converts sunshine into life-sustaining liquid.

49. Sound Insulation Materials

Students go on an audio trip to learn about sound insulation materials while investigating the field of acoustics.

They discover the science of noise reduction by examining how various materials block or dampen sound waves.

This investigation highlights the value of tranquil settings by transforming commonplace scenes into auditory comprehension labs.

Students test various materials, including foam, cotton, and cork, to see their effectiveness in isolating sound.

They investigate the interplay between sound waves and multiple textures and understand how architecture and design might enhance acoustic comfort.

The study of soundproofing materials equips sixth graders to design peaceful environments.

This trip encourages awareness of the adverse effects of noise on well-being and stoking curiosity about the science of sound.

Young space designers develop an appreciation for spaces that soothe and inspire by engaging with the quiet science of acoustics.

50. Renewable Energy Sources Comparison

Students dive into the dynamic world of renewable energy sources comparing as they embark on an energizing exploration.

They reveal the intricate network of sustainability and power generation by examining the advantages and drawbacks of solar, wind, hydro, and other renewable sources.

Students who participate in this investigation become supporters of a greener future by bridging the gap between science and the world’s energy issues.

Students evaluate various renewable energy solutions’ environmental effects, effectiveness, and viability through research and data analysis.

Realizing the promise of innovation in the shift to cleaner energy options, they investigate how these sources leverage natural processes to generate power.

Comparing different renewable energy sources introduces students to a world where science and environmental stewardship collide.

This tour highlights the need to make wise energy decisions and promotes awareness of our collective effect on the environment.

Young ecological activists embrace the promise of a sustainable future by dealing with the complexity of energy change.

51. Biodegradable vs. Non-biodegradable Materials

Students in sixth grade examine the contrast between biodegradable and non-biodegradable materials as part of their study of trash and ecology.

They highlight the significant effects of our consumption decisions by contrasting compounds that decompose naturally with those that persist in the environment.

By fusing the fields of chemistry and environmental responsibility, this investigation teaches us about life cycles through the use of waste.

Students investigate the decomposition rates of diverse materials through experiments and study, realizing the significance of biodegradability in waste management.

They explore the connections between ecosystems and human behavior while highlighting the difficulties presented by non-biodegradable trash.

The comparison of biodegradable and non-biodegradable products gives sixth graders the knowledge they need to make eco-aware purchasing decisions and reduce waste.

This journey cultivates an understanding of the interconnection of life cycles and mindful practices.

Young environmentalists embrace the power to sculpt a cleaner, more sustainable future by engaging with the science of trash.

52. Effects of Different Fertilizers on Plant Growth

Sixth-grade students embark on an adventure into the greener side of life as they investigate how various fertilizers affect plant development.

They learn how nutrients affect plant health, development, and ecosystem balance through testing multiple fertilizers.

This investigation uses soil as a canvas for botanical inquiry to unlock plant nutrition’s mysteries.

Students do practical experiments to see how fertilizers loaded with various elements, such as nitrogen, phosphorus, and potassium, impact plant health and growth.

They investigate the complex interactions between nutrient availability, soil health, and general plant welfare.

Studying how fertilizers affect plant development develops sixth graders into scientifically literate individuals.

This tour fosters a love of botany and emphasizes the significance of ethical farming practices and healthy ecosystems.

Young horticulturists sow the seeds of knowledge for a healthier, more verdant planet by engaging with the science of plant nutrition.

53. Chemical Reactions in Cooking (Baking Soda/Vinegar)

The dynamic interplay between vinegar and baking soda is the focus of the 6th graders’ culinary investigation of chemical reactions in cooking.

They discover the science behind bubbles, foam, and flavor modification by observing the bubbly cooperation of these culinary colleagues.

By fusing the fields of chemistry and gastronomy, this investigation turns cooking into an intriguing scientific experiment.

Through experimentation and observation, students learn how combining baking soda and vinegar produces carbon dioxide gas and a fizzy reaction that leavens baked goods or forms sauces with vinegar as the primary ingredient.

They examine how acids and bases affect flavor and texture, illuminating the complexity of culinary chemistry.

Students in the sixth grade become passionate about science and the culinary arts after studying chemical processes in cooking.

In addition to improving their cooking abilities, this voyage also cultivates an awareness of molecular magic during meal preparation.

Young chefs and scientists celebrate the delightful confluence of art and science on their plates by exploring the chemistry of flavors.

54. Melting Ice and Sea Level Rise

Students conduct a scary investigation into the relationship between rising sea levels and ice melting.

They decipher the science behind increasing sea levels and their effects on coastal populations by examining how climate change affects polar ice caps and glaciers.

This investigation combines Earth science and global stewardship to teach about planetary health.

Through research and data analysis, students investigate how the melting of ice sheets contributes to the influx of water into the oceans, which causes sea level rise.

They discuss the repercussions on weather patterns, low-lying regions’ susceptibility, and marine ecosystems.

The study of ice melting and sea level rise immerses students in climate science and environmental responsibility.

This voyage cultivates an awareness of the collective impact on the world and a curiosity about the changing dynamics of the Earth.

Young climate activists become defenders of resilience and sustainability by learning about the science of melting ice.

55. Plant Hormones and Growth

Students delve into the fascinating connection between plant hormones and growth while learning about botany.

They explain the biology of bending, flowering, and branching by examining how hormones like auxins, gibberellins, and cytokinins coordinate plant development.

This research transforms plants into a living laboratory for biological marvels, illuminating the complex orchestration of growth control.

Through experiments and observations, students investigate how various hormones affect plant functions like phototropism, germination, and flowering.

Realizing the similarities between plant biology and human physiology, they explore how plants sense and respond to their surroundings through hormone signaling.

Students in sixth grade become interested in biology and become plant enthusiasts after studying plant hormones and growth.

This journey encourages respect for the many survival and adaptation methods in addition to stoking interest in plant behavior.

Young plant biologists foster a stronger bond with the natural environment by learning about the science of growth regulation.

56. Effects of Caffeine on Heart Rate

Students explore how caffeine affects heart rate in a heart-pounding investigation.

By experimenting with regulated caffeine intake, they investigate the dynamic relationship between this stimulant and cardiovascular activity.

Due to this investigation, young researchers are invited to unravel the heart’s caffeine-fueled rhythm, which transforms beverages into glimpses of physiology.

Students carefully measure and observe heart rate variations before and after caffeine consumption.

They investigate how caffeine’s stimulating effects can cause faster heartbeats and explain how it affects the nervous system.

They reveal the complex relationship between beverages and heart dynamics by interacting with the body’s reactions.

Studying how caffeine affects heart rate introduces students to where daily decisions and physiology collide.

This journey encourages awareness of the effects of common substances while also stoking curiosity about the inner workings of the body.

Young scientists learn about the science of heartbeats and come to understand the beat of their health in a caffeinated understanding symphony.

57. Magnets Affecting Plant Growth

Students embark on a magnetic trip to explore the fascinating issue of how magnets impact plant growth.

They reveal the science underlying the interaction between physics and biology by looking at the potential impact of magnetic fields on germination, stem orientation, and overall development.

This investigation makes the idea of magnetism into a puzzling key that solves botanical puzzles.

Students investigate the impact of magnets on seeds, seedlings, and mature plants through experiments and observations.

They explore the possible benefits of magnetism in boosting development and nutrient absorption as well as the magnetic response of plant tissues, illuminating the complexity of this interdisciplinary topic.

Students can become explorers of the link between physics and botany by learning how magnets affect plant growth.

This voyage piques one’s interest in the mysterious world of magnetic effects and fosters an understanding of the intricate details of plant life.

By engaging with magnetic science, young plant researchers discover a world where the unseen and the apparent merge.

As we come to the end of our look at 57 fantastic science project ideas for sixth grade students, it is clear that science is all around us and just waiting to be explored.

The projects encourage students to ask questions and provide them with the tools necessary to do so through practical experimentation.

Young scientists can develop their capacities for critical thinking by participating in projects such as these, which will assist them in their academic and future endeavors.

A father to three young boys with a passion of homeschooling. I am always seeking new ways to help them learn, grow, and have fun. I have a passion for traveling with the family and exposing our kids to new experiences and life lessons.

Learn STEM by Doing (and having fun)!

Winning Science Fair Projects [Get Inspired By Past Winners!]

Have you won a science fair project?  Interested in sharing your idea?

What we’ve seen in 100s of winning science fair projects.

First, some projects are more advanced.  Some projects were winners in national science fairs.  However, that doesn’t mean a scaled-down version can’t be tried.  Or, maybe an alternative approach.

Second, many of these science fair projects were completed through a mentorship program.  What’s that??  Many universities offer mentor programs geared towards younger students.  These programs pair students with a research lab and faculty member.  Students do experiments with faculty members.  Check out our STEMium camp listings to see more examples.  Typically, programs recruit high school students.  However, if your student is in earlier grades, keep this in mind and explore opportunities in your area.

Third, a ton of solutions center on climate/environment science.  Very cool!!

Finally, ALL of the projects solve a problem or answer a question.  Read through the list and think about your “every day” problems.  Could you solve one with your own science fair project?

We don’t provide full experimental details –  that’s up to you!  Leave a comment below if you’re stuck on how to get started.  Still not sure where to start??  Feel free to check out our germiest spot in school experiment,   alka-seltzer bottle rockets , or our slime science fair project , which can be done in 1-3 days.  Let’s science!

List of winning science fair projects

• Can air quality be measured with an Arduino device?
• Can plants survive without sunlight?
• Effects of ammonium nitrate concentrations on cold pack temperatures
• Effect of wi-fi signals on the growth of peapods
• How does vitamin C concentration change in cut fruits over time?
• Can ocean acidification be lowered with aquatic plants?
• Examining effects of food on glycemic index after eating
• How does air pollution and weather effect solar cell output?
• What is the effect of more turns in the coil on the amount of electricity created?
• How long can a mechanical pencil lead be before it breaks?
• Can forest fires be predicted using artificial intelligence?
• How strong are bioplastic bags?
• How do different fabrics reduce concentration of polluted air?
• Can water be extracted from humid air?
• Which mouthwash is most effective at killing bacteria?
• Which grows faster: sideways plants vs. upright plants?
• How can microplastics be removed from ocean water?
• What blood pressure monitor gives the most consistent readings?
• What works better for memory retention:  handwriting notes or typing?
• Does text font/color affect user readability?
• How does weather change mood?
• The effects of listening to music while studying
• How do soil types change plant growth rates?
• Can eggshells make plants grow faster?
• Which liquids evaporate faster?
• How does paper airplane design affect speed and distance?
• Which sunglasses offer the best UV protection?
• How does sleep duration affect the body?
• Apple Watch vs. Fitbit vs. Garmin – which wearable offers the best heart rate accuracy?
• How does dog saliva affect bacterial growth?
• How effective are UV lights at killing bacteria?
• Which stain remover removes stains the best?
• Do all crayons have the same melting temperature?
• Measuring sugar content with a laser pointer
• Do more expensive batteries last longer (and are they worth it)?
• Which sunscreen/SPF level provides the best protection?
• Effects of pH on plant growth rates
• Does exercise change body temperature?
• How does iPad use before bed affect sleep?
• Do video games raise your heart rate?
• How does temperature affect magnetic strength?
• Which nail polish lasts the longest?
• How does acid rain effect plants?
• What types of orange juice have the highest vitamin C concentration?
• Can sugar make you focus more?
• Which diaper is best for your baby?
• Do different types of toilet paper have different absorption properties?
• Effect of baking powder on muffins
• Finding which biofuel has the most energy – vegetable oil vs. algae
• How does the catcher influence the pitcher’s accuracy in baseball?
• Effects of hydrogen peroxide on plant germination and growth
• How C. elegans are effected by anti-oxidants and UV light
• Evaluating the 5-second rule
• Does chewing gum improve your concentration?
• How can you win at rock, paper, scissors?
• Effect of baseball bat material on the distance of a hit ball
• Effect of clothing on perceived intelligence
• Can a low-carb diet change cardiovascular markers?
• Which fruit generates the most electricity?
• Are fingerprints hereditary?
• How much fat is in your food?
• Detecting and removing of pesticides from produce
• Which accent is most appealing?
• Which travel mug keeps liquids hot the longest?
• Which brand of bath bomb dissolves the fastest?
• Dog or human: who has the cleaner mouth?
• How salty does water need to be to make an egg float?
• Effect of fabric softener on the flammability of fabric
• Which propeller is best at harnessing the wind?
• How does music type effect customer purchases in a store?
• Can bacterial strains be used to degrade plastics?
• Effects of heat on enzyme activity
• An affordable Braille embosser
• Using a Raspberry Pi-based solar tracker to improve solar panel output
• Pill case reminder system
• Computerized signal for students with ADHD
• Engineering algal bioscrubbers to prevent global warming
• Removing impurities from ground water
• Bacterial strains to create fuel cells
• Facial recognition alert system for Alzheimer’s patients
• Do air temperatures affect candle burning rates?
• Effects of lead in water on yeast
• Testing antimicrobial effects of spices
• Are all forms of phone distraction equal while driving?
• How do shellfish adapt to new environments?
• Are kids that eat school lunches more likely to be obese than students that eat food from home?
• How much bacteria is on your orthodontic retainer?
• Who’s more addicted to a smartphone: parents or kids?
• Do introverts have better memories than extroverts?
• How does color affect eyesight?
• How does noise pollution effect plant growth?
• How effective are homeopathic mosquito repellents?
• Does breakfast improve student performance in the first hour of school?
• What type of dog is most likely to be adopted?
• Effects of sugar/sugar substitutes on yeast energy output
• Hydro-focused battery charging station
• Do deflated footballs go further than fully inflated balls?
• AI-powered tornado detection system
• Effects of sugar on children with ADHD
• EEG-powered remote control car
• How does color affect memory recall?
• Improving conduction in a solar-powered oven
• Smartphone-powered disease diagnostic device (many of these!)
• Adapting window blinds for solar panels

Still not sure what to do??  Look at The Simpson’s science fair projects!

After literally decades on the air, The Simpson’s even covered the science fair!  Plenty of projects to inspire you such as…

Duffless (Season 4, Episode 16)

In our first example, Lisa grows a gigantic tomato with anabolic steroids.  Unfortunately, Bart intervenes, tomato gets destroyed and Lisa must come up with another project.  Her solution:  is my brother dumber than a hamster?

The Genesis Tub (Season 8, Episode 1)

Another Bart/Lisa science fair rivalry, but this time with a Halloween twist.  Her initial project idea is pretty good!  Can soda dissolve a tooth?  However, things go off the rails from there.

E-I-E-I-Annoying Grunt (Season 11, Episode 5)

Final example:  Less of a “traditional” project, but as the Simpsons are hiding out on a farm, Homer decides to try planting crops.  When Marge suggests fertilizer, Homer borrows plutonium from the power plant.  The result – a new hybrid tomato is born!

CONCLUSION:  It’s not whether you win or lose…  it’s how you do your science!

I’ll never forget my younger daughter’s second science fair experience.  She and her partner did a great job brainstorming ideas.  Then, the enthusiasm waned a bit.  Then, it came back!  After ~3 weekends the final project came together.  Overall, the parents really stood back and let them run with things.

While I helped construct a demo volcano, the board was entirely done by them (3rd grader style complete with Christmas lights!).  You might imagine that it might not have been as sharp in quality as others that had more parental assistance.  🙂

You know what?  It didn’t matter…

At the presentation, they knew their stuff!

They clearly communicated their hypothesis, their experimental design, results and conclusions.

Then…

THEY BLEW UP A VOLCANO!!  WOOHOO!!

When they came back to find a 1st place ribbon, the smiles were ear to ear!  Tons of shrieks and giggles!  Winning science fair projects don’t always start that way.  In the end, what’s most important — have a positive experience.

If you’ve won a science fair competition, share your project in the comments and what your winning strategy involved!  Or, if you’re struggling to narrow it down, share some ideas.

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55 Super Fun Science Fair Projects For 6th Graders

Categories Activities & Ideas

Science is so fascinating, but it can sometimes be difficult to convince 11-year-olds that this is the case.

In order to capture their attention, you need to come up with something that will not only educate them, but also entertain them.

Below, we have listed 55 super fun science fair projects that 6th graders will love to try.

1. Carbon Sugar Snake

To start off this list, here’s an experiment that focuses on three heat-dependent chemical reactions. 

By lighting up some baking soda and sugar with a match, you can create a ‘snake’ made from carbon and sugar that continues to grow for up to 20 minutes!

2. Turn Milk into Plastic

With this experiment, you can teach your kids how to make plastic from lots of different materials, even including milk.

Once you’ve created the milky plastic, you can even melt and mold the organic casein polymer to make a new product.

3. Which Wheel Works Best?

This is a great way to teach kids about acceleration and velocity, and how the material of a wheel can affect the speed and resistance of a skateboard.

We don’t recommend trying this experiment if you’re not a very good skateboarder, however, as this could potentially result in injury.

4. Baking Soda-Powered Boat

By assembling a plastic bottle with some vinegar, baking soda, and a straw, you can create your very own mini speedboat.

The idea behind this experiment is very similar to making a baking soda volcano, as the chemical reaction creates pressure and movement.

5. Two-Stage Balloon Rocket

This is another experiment that kids can have lots of fun with, as well as learning all about how it works.

By attaching a balloon to the back of a straw, you can pump it up and release it across the room, allowing it to soar like a real life rocket.

6. Tiny Dancers (A Homopolar Motor)

By attaching a couple of wires and magnets to an AA battery, you can create your very own spinning ballerina!

You can even add some colorful crêpe paper to give your tiny dancer its very own tutu. Get creative, and learn all about how your dancer is spinning. 

7. Magic Spinning Pen

Magnets are some of the coolest tools ever, especially when you know how to use them to create fun tricks like these.

To create this magical spinning pen, you’ll need to use some small rods, a pen, a coin, and, of course, a couple of magnets.

8. Homemade Wigglebot

Did you know that you can make your very own robot using a plastic cup with googly eyes? This ‘robot’ can walk around all on its own!

This is another experiment that will teach your children how batteries work alongside motors.

9. Electromagnetic Train

Next up, we’ve got a science project that is so easy to set up, yet it will keep your kids entertained for hours.

An AAA battery attached to some magnets will become an electromagnetic train when placed at the entrance of a copper wire tunnel.

10. Holiday Card Circuits

Say goodbye to your run-of-the-mill handcrafted Christmas cards, and say hello to these impressive holiday card circuits.

By building a super simply circuit and taping it onto some cardboard, you can bring your festive designs to life… or, should we say, ‘to light ’? 

11. How to Make Fizzing Lemonade

Everybody loved carbonated drinks, but not everyone knows how they work. Where do the bubbles come from?!

Use this experiment to teach your kids (and yourself) how a chemical reaction using acid can turn your still drink into a bubbly one.

12. Solar-Powered Robot Bug

This solar-powered robot bug is also known as a ‘frightened grasshopper’. Why? Because it’s scared of the light!

Once you’ve assembled your robot bug, witness how it runs around when exposed to light, but comes to a standstill once it has been covered in shade.

13. Homemade Coffee Can Camera Obscura

Have your kids ever wondered how a camera works, or do they just accept it for what it is? If so, now is the time to teach them.

This camera is so easy to make from coffee cans and construction paper, and is so interesting and fun to use.

14. Heat Sensitive Color Changing Slime

From mood rings to heat-sensitive lip gloss, it is always impressive when an object can change color. This is all thanks to thermochromic pigment.

Add some thermochromic pigment to homemade slime made from white glue and liquid starch, and watch the magic happen.

15. DIY Crystal Landscapes

Have you ever seen anything as pretty and colorful as these vibrant crystal landscapes? You will find it surprising how easy they are to make.

You’re going to need to mix together some liquid bluing with water, salt, coloring, and ammonia to create these beautiful crystal creations.

16. Glow in the Dark Jello

Uh, hello? Glow in the dark Jello? Just when you thought that jello couldn’t get any more fun and yummy, this edible experiment pops up.

Boil some light-colored Jello with tonic water, let it cool in a mold, and then turn the lights out for the real fun to begin. 

17. How Do Roots Grow When the Direction of Gravity Changes?

We all know that gravity is what keeps our feet weighed to the ground, but what about plants? Does gravity affect the way they grow?

Make your own scientific container (made from a CD case), add some seeds, and switch up the directions every so often to test out this theory.

18. Seafloor Spreading Model

If you want to create a fun lesson plan to teach your students about the lithosphere, and how earthquakes occur, this is a great project to try out.

You will need to cut up a lot of paper for this project, so you can decide whether to do this beforehand, or to allow your students to fully make the project themselves.

19. The Science Behind Tsunamis

Tsunamis are terrifying natural occurrences, regardless of whether your hometown and country is at risk of them. 

Sometimes, learning about something can make it seem less scary. Teach your students about tsunamis using this experiment.

20. How Acidic Waters Make Rocks Disappear

It seems impossible to imagine that rocks can become worn down by water over time. With this project, you can work out how it happens, and why.

This is a great way to teach students about the effects of acidic water, and how stone can gradually become worn down and dissolved. 

21. Ice Cube vs. Wire

How could it be possible that one thin piece of wire could cleanly slice through an ice cube while leaving the rest of it intact?

Use a piece of wire and an ice cube to test the strange physics of water. To increase the fun, ask your students to guess how long it will take for the wire to split the cube.

22. DIY Heart Pump

Our bodies are fascinating vessels, and it can be so interesting to learn exactly what is going on inside ourselves.

This DIY heart pump may be a little fiddly to piece together, but once complete, you can show your students what is really going on inside their chests.

23. Engineering a Bridge

Engineering is a super fun and handy skill to have, whether it is something you want to make a career out of, or you’re just a crafty kind of person.

Use this sheet to ask your students how many popsicle sticks they think will need to create a sturdy bridge. Then, put their ideas to the test.

24. Earthquake Science Project

As we said earlier, sometimes knowing more about something (e.g., an earthquake) can make it seem a little less scary. 

This project involves creating sturdy structures, and then using books as a foundation to represent the earth’s plates. See how long your structures will stay standing, and work out how to improve them.

25. Magic Cloud in a Bottle

When we were kids, we thought clouds had the same texture as cotton candy, or the inside of a pillow. Nowadays, we know differently… but, do your students?

Teach them what a cloud really is by using rubbing alcohol and a pump to recreate what it really is, but in a smaller form.

26. Pop Rocks and Soda Science Experiment

Popping candy is so fun to eat, but do you know how it works? Why does it start popping when it goes into your mouth? (More on that later.)

For now, here is a fun variation on the ‘coke and Mentos’ experiment. Add some Pop Rocks into a bottle of soda, and see what happens…

27. Biodomes Engineering Design Project

By getting your students to design their very own biodome, they can learn more about how an ecosystem works.

You’re going to need some soil, seeds, sand, rocks, and even some creepy crawlies. Add them all into a plastic bottle, and take notes of what occurs inside.

28. Displacement and Buoyancy in Metal Boats

Archimedes’s principle, or the law of buoyancy, explains why some objects sink in water, while others don’t.

Use some foil and a bowl of water to test how well foil will float, depending on its size and shape. 

29. The Science Behind Edible Glass

Have you ever eaten glass? Normally we wouldn’t recommend it, but this edible glass is super tasty, and pretty easy to make.

Like real glass is formed through melted grains of sand, this glass is made from grains of sugar. Melt it on a baking sheet, allow it to cool, and then get eating (or smashing).

30. Cleaning Coins Experiment

When you begin to think about how many people have held the coins in your purse at some point, it can make your skin crawl a little. Coins are super dirty.

Try this experiment to see what material can clean coins the best, from apple juice to catsup. You’ll be surprised at how shiny your cents will be afterward!

31. Red Cabbage pH Indicator

Most people will remember learning about pH levels in school, and how much fun it was, seeing all the colors of the rainbow.

Blend up some red cabbage with water, and mix with everyday items – such as lemon juice and soda – to test their pH levels based on which color the liquid becomes.

32. Skittles Science Fair Project

Many of you may have seen this experiment through social media, with many people testing it out with their children at home.

This colorful project involves placing Skittles on a plate, and adding a couple of drops of water. Watch and see how the colors streak across each other.

33. Tooth Decay Egg Experiment

We all know that sugar is bad for our teeth, but how can you test that notion in a class of 6th graders? Well, by using some eggs!

Place hard-boiled eggs in separate containers filled with soda, energy drinks, orange juice, and milk, and wait to see how the eggs react to each liquid.

34. Science of Candy: Lightning in Your Mouth

Did you know that LifeSaver candy can glow in the dark? Yes , really! This is a great experiment to teach kids how friction can cause electricity, even in your mouth.

Go into a dark room, and chew on some wintergreen-flavored LifeSavers with your mouth open. Everyone around you will be able to see the lightning going off around your teeth.

35. Why Does Popping Candy Pop?

As we promised, here is an experiment that will teach children why popping candy does what it does!

There are tiny pockets of gas inside popping candy, which are released when exposed to liquid. Test this out by adding the candy to different kinds of liquids, from water to oil.

36. Which Fruits Rot the Fastest?

This is a pretty gross experiment, but it is still a fascinating one that the children are going to love. For this project, you will need to work with some rotting fruit.

Place different fruits in separate bowls, and observe how they decompose over the course of 14 days. Take note of what happens as they rot.

37. What Light or Heat Conditions are Favorable to Insects?

Have you ever been on your phone in a dark room, and a moth landed on the screen? Insects seem to be attracted to light… or, are they attracted to the heat of your phone?

Use this experiment to find out what conditions attract insects. You may want to avoid this one if you don’t like bugs, though.

38. Paper Towel Experiment

Paper towels are one of the world’s most underrated inventions, in our opinion. It really is fascinating how they can absorb so much liquid before breaking.

Is it really worth spending more money on a more expensive brand of paper towel? Test the theory by using different kinds of paper towels to clean up water, and see which works best.

39. Mini Marshmallow Launcher

This experiment can get a little messy, especially when kids are involved, so be warned before trying it…

Basically, this experiment is all about elasticity. You create a launcher using a balloon and a pool noodle, and use it to launch mini marshmallows around the room!

40. A Simple Ant Experiment

This is another messy experiment that will teach children more about creepy crawlies, and what they like to eat.

Find some ants, and use different kinds of food to lure them in. Take notes of which kind of food ants prefer to eat, and which ones they don’t like.

41. How to Make a Teleidoscope

Kaleidoscopes are truly magical contraptions, no matter what age you are. Did you know how easy it is to make your own at home?

This guide will teach you how to make your own teleidoscope ( a kaleidoscope without an end). All you need is some reflective sheets, colored paper, and a cardboard tube.

42. St Patrick’s Day Fizzing Pot Experiment

This experiment is kind of like those baking soda volcano experiments that we all made in school, but with an Irish twist.

Grab some small, black plastic pots, and add some baking soda, vinegar, and green food coloring inside. Give it a stir, and see what happens.

43. Seed Germinator

Is there anything more interesting than watching life form before your very eyes? By germinating some seeds, you can do this in your own classroom.

Use some fast germinating seeds, and place them in some soil on top of a coffee filter or paper towel inside a container. Watch them grow with each passing day.

44. The Biology of Yogurt

Yogurt is so tasty, but it can make some people feel a little weird when they think about what it is made out of. Live microorganisms have never tasted so good!

Providing that you have an oven on hand, along with some cooking utensils, you can show your children how to make homemade yogurt.

45. Pouring Water Down a String

String is super absorbent, which is what makes this experiment so fun and intriguing. All you’ll need is three materials to carry it out!

We recommend adding some food coloring to the water so that you can see the colors travelling through the string as it spreads.

46. How to Make a Modern Art Steady Hand Game

Anyone who has ever played a game of Operation will immediately know how this game works. Turns out, you can easily make this at home.

You will need some batteries, clip leads, copper wire, and more to create this fun game. Once the circuit is complete and the box has been built, you can start playing!

47. Rapid Color Changing Chemistry

We’re back with another magical color changing experiment! This time, you will be using vitamin C, iodine, liquid starch, and hydrogen peroxide to create a clock chemical reaction.

As you mix and pour each liquid into each other, you will notice that the color of the liquid will vastly change. 

48. Engineer a Cell Phone Stand

Science experiments are cool, but they’re even better when you get to create something that you can use more than once.

Use some popsicle sticks, paper clips, and rubber bands to make your very own cell phone stand. This will teach children how to make use of everyday objects, and recycle them.

49. Law of Inertia Experiment using a Fidget Spinner

The law of inertia states that if a person or object is moving at a constant speed in a straight line, they will continue to move until a force stops them. This force is, more often than not, friction.

You can test this law by using a light-up fidget spinner. Spin the fidget spinner without its lights on, and try again with them on. Time each try, and make note of your observations.

50. Catapults and Trajectory

This is probably the easiest experiment to attempt in this entire list. All you need are some wooden planks of different lengths and weights, and some random objects.

Try catapulting the same objects from different sized planks by stamping on them, and make note of how the size of the plank affects the trajectory of the object.

51. Lung Science Experiment

If you liked the DIY heart experiment, you will also like this one. Instead of making a replica of the human heart, this project recreates the human lungs.

You will need balloons, straws, and a clear plastic bottle for this experiment. One balloon will represent a healthy lung, while the second balloon (with another balloon inside) will represent a smoker’s lung.

52. Dissecting an Owl Pellet

Did you know that owls will regurgitate things that they have eaten that they cannot digest? These bones and pieces of gristle are spat out as a pellet.

Dissecting an owl pellet can be really interesting or really gross, depending on what kind of person you are. Either way, prepare to find some skeletons in your pellets!

53. Potato Battery

While we usually don’t recommend eating batteries, this is one battery that is actually pretty delicious. Yes, you can use a potato as a battery.

With some heavy copper wire, alligator clips, and some nails, you can connect a raw potato to a fully-functioning LED clock… and it will work !

54. Ice Cream in a Bag

This is probably the tastiest experiment in this list, and it is also one of the easiest. This is how you can make instant ice cream in a bag.

Fill a ziplock bag with ice and salt, and fill another bag with all the ingredients you need to make ice cream. Place the second bag in the first, and mush it around until it becomes ice cream!

55. Sugar Cookie Solar System

Finally, we have an entry that is not so much an experiment, but more of an activity that will help kids to learn about the planets in our solar system.

After all, what motivates children more than desserts?

Final Thoughts

Whether you have a child who’s interested in engineering, or they’re fascinating by stuff that changes color, there is something in this list for everyone. Each entry is as entertaining as it is educational!

We hope you found this guide helpful. Ready to learn more? Take a look at these 7th grade science experiment ideas .

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30 Inventive 6th Grade Science Projects

By Beth Roberts | Last Updated April 21, 2022

Sixth graders are curious and inquisitive learners. The science projects will engage them in thinking scientifically and creatively to solve problems that they care about. They may also spark an interest or provide practice on a topic.

Today we are going to share with you 30 of the best 6th grade science projects with you. All of these are perfect for a variety of teachers, but especially those looking for ideas for lessons that need to be shorter and more interactive. These should also work well as homework assignments or even on an individual level if they are completed in groups.

1. What Causes Ice to Melt at the Fastest Rate?

Ever wondered about what causes ice to melt quickest? There are a lot of different factors that can affect it but there are a few which are more likely than others. These factors include air temperature and humidity as well as how cold something is.

Learn more: Science Buddies/Ice Melt

2. Roomba and Lego Maze Coding Project

Wouldn’t it be cool if you could build your own Roomba Maze game with just Lego? Well, now you can! Even better, this project is not only easy to complete but fun for anyone who is looking to try something new.

Learn more: Pro Lab/Lego Maze

3. Build a pumpkin launcher

 Some examples of these science projects include building a catapult out of Legos and making a tower for the purpose of launching a pumpkin. Building this catapult is just one of the many great ways to study lessons in physics in your classroom.

Learn more: Frugal Fun for boys and girls/Lego Catapult  

4. Lemon Volcano

Lemon volcano experiments are designed for students to explore how a chemical reaction is affected by different factors and how those factors affect the reactions overall outcome.

Learn more: Babble Dabble Do/Lemon Vocado

5. Making a Shaker Slime

A shaker slime is basically a form of powder that can slather onto your skin, making it feel slimy and wet. Anyone who has done this before will know the feeling of being slimed with goo or wearing gloop. 

Learn more: Steve Spangler Science/Shaker Slime

6. acid-base reaction with lemon

It is a simple science fair project to demonstrate how lemons react when they come into contact with different types of acids, such as vinegar and baking soda. The results are interesting to observe and can be used as an experiment for younger students who are just beginning their study of the sciences.

Learn more: Science Bob/Acid-base Reaction

7. Egg Drop challenge

As all people also know the fragile and ever-daunting egg. With a delicate yolk and shell, tiny eggs are easy to crack. Vì vậy để bảo quản trứng không bị vỡ là một thử thách tương đối khó và thú vị. 

Learn more: Buggy and Buddy/Egg Drop

8. Making giant soap bubbles

Making giant soap bubbles is a fun and easy science project that you can do with kids in a classroom, at home, or any other place. They’re a great way to make learning fun!

Learn more: Kiwi Co/Giant Bubbles

9. Amazing Plastic Bottle Rocket

For this science project, you will build a model rocket that can launch into the sky. You will design it to obtain maximum height.To make the rocket more stable, you are going to attach parachute-like fins at different points along its length.

Learn more: The Sci Guys/Bottle Rocket

10. Paper Cup Anemometer 

A paper cup anemometer is the perfect project for a 6th grade science unit. It’s easy to make, durable, and makes a great learning tool and demonstration piece for students. 

Learn more: Left Brain Craft Brain/Anemometer

11.  Relax with Lava Lamp

Lava lamps are a type of novelty lamp whose fluid is usually made to look like an actual lava flow. In this experiment we will learn how lava lamps work!

Learn more: Science Fun/Lava Lamp

12. How traffic lights work

The traffic lights work in an interesting way. A sensor built into the road is able to detect when a vehicle is passing over it. When a car passes over the sensor, it sends out a radio signal in all directions at frequencies of around 10 kHz frequency. 

Learn more: Science Project/Traffic Signals

13. Extracting Strawberries DNA 

In this experiment, you will extract and amplify the strawberry DNA, which can be obtained from a strawberry by crushing it up and running it on a gel.

Learn more: Education/Strawberries DNA

14. how craters are made

A crater is a bowl-shaped cavity, or an area of ground sunk below the surrounding. Craters can be formed through a number of different geological processes, depending on the material that creates them. 

Learn more: Science Sparks/Craters

15. DANCING RAISINS

When doing a science project, one of the first steps is to think about what questions you want to find answers for. The purpose of this experiment was to answer if the raisins dance when they are not on the top and bottom shelves. 

Learn more: Ryan’s World/Dancing Raisins

16. Create a Paper Ball Run

The paper ball is a simple toy that lets people have fun and exercise their creativity. Such simplicity of design means the paper ball has a variety of uses. Paper ball runs are one variation these, where people can build a contraption to get the balls moving, or let gravity do it.

Learn more: Science Buddies/Paper Ball Run

17. What is a non-Newtonian fluid?

Oobleck is a non-Newtonian fluid, which means that its viscosity changes with pressure. Oobleck is what happens when corn starch and water are mixed together at the right consistency to create a goopy mess. 

Learn more: Babble Dabbledo/Oobleck

18. Gummy Bear Osmosis

The simplest gummy bear project for 6th graders might be to examine how gumminess relates to pH level. To test this hypothesis students would take a whole tray of gummy bears with fruit juice (choose one juice), half with water, and half with vinegar.

Learn more: Love to Know/Gummy Bear

19. Mysterious Upside Down Water glass

Many children ask their parents to make an upside down water experiment. It is a fun and easy science project that demonstrates density and the difference in how liquids behave when turned upside down. 

Learn more: Gally Kids/Upside Down Water

20. Invisible Fire Extinguishers Experiment

 This experiment introduces students learn about how an invisible object can be used as a fire extinguisher. The experiment uses water, detergent and paper towel to create an invisible smoke cloud that will eventually put out a real-world fire such as one in a lab or on stage.

Invisible Extinguisher

Learn more: Science Fun/Invisible Extinguisher

21. Study Examines Plant Growth and Caffeine Effects

Caffeine is a biologically active compound that uses by plants to increase the levels of chlorophylls and nutrients they can absorb. Using data collected from real-life experiments, it offers a scientific review on how caffeine effects plant growth.”

Learn more: Education/Caffeine Effects on Plant Growth

22. Make a cloud in a bottle

Clouds in a bottle are a popular science fair project for students. Many children in 6th grade have created their own cloud, which is then placed on the top of a soda can and frozen to create a portable cloud you can easily keep at home.

Learn more: Kiwi Crate/Instant Cloud

23. Make a Tallest Tower by Paper

This project is an example of a STEM activity that a 6th grade student might create for their science fair. The idea is to make a stack of paper, the highest tower possible. The students are challenged to think about what materials they will use and how they will build their tower.

Learn more: Science Buddies/Tallest Paper Tower

24. Make Powerful Electromagnet

An electromagnet is an object, usually a coil of wire, that generates an electromagnetic field when electric current is applied. This magnetic field can be directed by the shape of the coil and the strength of the current.

Learn more: Frugal Fun for Boys and Girls/Electromagnet

25. Build a Big Mable Run 

A marble run is a popular science experiment for kids in elementary school. It’s really easy to construct and simple to conduct tests with. You build your own marble maze and then stick marbles from the top at various points on the track, testing how fast they go as they make their way down to the bottom of the course.

Learn more: EHC Gear/Mable Run  

26. Making WIGGLEBOT

Science is a lot of fun and it can be done in a variety of ways. One way to do science is by making a toy robot or some kind of gadget. This project will tell you how to make a robot called Wiggle Bot, just like the one we made in class, using nothing but paper, tape, and an elastic band

Learn more: Research Parent/Wigglebot

27. Create a STEADY HAND GAME

Kids love to learn how to make buzz wire games at home and show them off to their friends. The buzz wire game is made out of an old shoelace and hanging beads so that the wires will jingle as they move up and down. These games help kids learn about gravity, motion, and math all at once!

Learn more: Beginner Life/Buzz Wire Game

28. Static Electricity band

When we did this experiment, it made the water in the bowl feel like it was alive. This can be done using a light bulb to make a tiny bit of electricity in a copper wire. Once that’s done, you place two metal sheets on opposite ends of the light bulb to form a bridge with an equal amount of metal on each side.

Learn more: Steve Spangler Science/Floating Static Bands

29. Efficiency of solar cells

This article is about how solar cells work and what their efficiency is. It also has a scientific chart on the ranking of solar cells and their energy conversion efficiency. Solar cells are used in everyday life to generate electricity that can power homes and businesses.

Learn more: Education/Photovoltaic Cell

30. How to Cool a Soda fastest

They are: using ice, cold water and salt, using snow, putting it in the freezer, blowing on it hard enough so that condensation builds up on the edge of the can or bottle cap.

Learn more: Science Buddies/Cool a Soda

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6th Grade Science Projects

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6th Grade Science Projects

Get started with 6th grade science fair projects right here. Topics for 6th grade science include life science , earth science , and physical science . Understanding and using the scientific method including variables is also a large part of the science experiment process.

Separating Mixtures

What colors absorb heat better, make paper airplanes.

Carbon Atom Model

Atoms are the building blocks of everything. Learn about the structure of atoms by building a simple 3D atom model with pom-poms.

Mobius Strip

Imagine taking a strip of paper, twisting it, and connecting the ends. What if I told you this strange shape only has one side?

Parachute STEM

A parachute science project explores gravity , air resistance, and terminal velocity concepts.

Plant Growth Experiment

Ever wonder what makes plants grow the best? Explore how light, water, and temperature affect plant growth.

Egg Drop Project

Investigate what materials and type of construction will keep an egg from breaking when dropped from a height!

Flower Dissection Lab

Dissecting a flower is a fantastic way to learn about plant structure and reproduction.

Soap and Surface Tension

Investigate how different types of soap affect the surface tension of water.

Periodic Table

Explore the periodic table with free printable worksheets. Explore chemistry with hands-on science activities.

Create A Volcano

Build a model volcano and simulate an eruption using baking soda and vinegar.

Build A Solar Oven

Build a simple solar oven and test its efficiency in cooking or heating food.

Grow Crystal Geodes

Grow sparkling crystals inside eggshells to learn about crystal formation and chemistry.

Make A Compass

Learn about magnetism and navigation by making a simple compass using a magnetized needle and a water bowl.

Build A Roller Coaster

Design and build your own miniature roller coaster to explore physics concepts like gravity and momentum.

Potato Battery

Light a bulb using a potato and some zinc and copper nails, and learn about chemical reactions and circuits.

Static Electricity

Use balloons and wool to create static electricity and explore how it affects objects like cornstarch, paper, and hair.

Create A Wind Tunnel

Use common household supplies to explore aerodynamics, airflow properties, and air’s effects on different objects.

Create a homemade lava lamp and explain the science behind it.

Build A Lung Model

Construct a model lung using balloons and plastic bottles to demonstrate how our respiratory system works.

Reaction Rates

Study how surface area affects the rate of chemical reactions using effervescent tablets.

Cleaning Pennies

Test different cleaning solutions to see which cleans tarnished pennies the best.

Yeast Fermentation

Investigate the affect of different types of sugar on yeast fermentation.

Coastal Erosion

Create a model to demonstrate how water erosion shapes landscapes over time.

Seashells In Vinegar

Investigate the effect of ocean acidification on animals with seashells.

Solar System Model

Build a scale model of the solar system to visualize distances between planets.

Seed Germination

Compare the germination rates of seeds in various soil types or under different conditions (e.g. temperature, moisture).

Pumpkin Clock

Create a voltaic cell using a pumpkin and investigate its ability to power a small digital clock.

Elephant Toothpaste

Investigate the chemical reaction of hydrogen peroxide and yeast, and factors that affect the rate and size of the reaction.

Color and Taste

Investigate how different colors affect taste perception.

Chromatography

Use paper chromatography to separate the pigments in different types of ink or markers.

Balloon Rocket

Investigate how the amount of air in a balloon affects the distance it travels along a string.

Acid-Base Indicators

Create natural pH indicators using red cabbage juice and test various household substances.

Use crayons to model the rock cycle processes of melting, cooling, and erosion.

Recycling Paper

Create recycled paper from used paper and investigate the strength and texture of the recycled product.

Timekeeping

Build a simple water clock or sundial and test its accuracy.

Patterns In Nature

Investigate mathematical patterns found in nature (e.g. Fibonacci sequence).

Homemade Slime

Experiment with different recipes for making slime to find the best consistency and stretchiness.

Build A Hovercraft

Build a small hovercraft using household materials and test its performance.

Earthquakes

Create a model to demonstrate how earthquakes affect buildings.

Light Refraction

Investigate how light bends when passing through different substances (e.g. water, glass).

Water Filtration

Design and test a simple water filtration system using sand, gravel, and charcoal.

Simple Machines

Build models of simple machines (e.g., levers, pulleys) and test their mechanical advantage.

Blow Up A Balloon

Measure the amount of gas produced from the reaction of vinegar and baking soda with different concentrations.

Balloon Car

Design a balloon powered car and investigate what conditions make it travel the furthest.

Weather Patterns

Track and analyze local weather patterns over a month, noting temperature, humidity, and precipitation.

Water Wheel

Construct a waterwheel and measure its energy output.

Bridge Building

Design and test the strength of different bridge structures using materials like popsicle sticks or paper.

Crystal Growth

Grow sugar crystals and explore how different conditions affect crystal size and growth rate.

Salt Water Density

Investigate how different concentrations of salt water affect the buoyancy of an egg.

Extract DNA

Extract DNA from fruits like strawberries or bananas.

Create bath bombs and test how different ingredients affect the fizzing reaction.

Catapult Accuracy

Build a catapult and test its accuracy with different arm lengths.

Plastic Milk

Create plastic from milk and vinegar and test its properties.

Growing Mold

Investigate how different conditions affect the growth of mold.

Gyroscopic Effect

Explore the gyroscopic effect using a spinning wheel or top.

Melting Ice

Investigate what factors make ice melt faster.

Butterfly Life Cycle

Observe and document the life cycle of butterflies from caterpillars to adults.

Leaf Chromatography

Separate the pigments in leaves using chromatography.

Simulate acid rain and study its effects on plant growth.

Tectonic Plates

Create a model to demonstrate how tectonic plates move and interact.

Investigate the factors that affect the popping of popcorn (e.g. temperature, oil and moisture content).

Star Life Cycle

Create a model to demonstrate the life cycle of a star.

Oil Spill Clean Up

Investigate different methods for cleaning up oil spills.

Color and Memory

Test how different colors affect memory retention.

Free Printable Science Fair Project Pack!

• How To Choose A Project
• Science Project Tips From A Teacher
• Science Fair Board Ideas

Helpful Science Resources To Get You Started

Here are a few resources that will help you introduce science more effectively to your kiddos or students and feel confident yourself when presenting materials. You’ll find helpful free printables throughout.

• Best Science Practices (as it relates to the scientific method)
• Science Vocabulary
• All About Scientists
• Free Science Worksheets
• DIY Science Kits
• Science Tools for Kids
• Scientific Method for Kids
• All About Variables in Science
• Citizen Science Guide
• Join us in the Club

Science Activities By Age Group

• Science for Toddlers
• Science for Preschoolers
• Science for Kindergarten
• Elementary Science by Season
• Science for 1st Grade
• Science for 2nd Grade
• Science for 3rd Grade
• Science for 4th Grade
• Science for 5th Grade
• Science for Middle School

Printable Science Projects For Kids

If you’re looking to grab all of our printable science projects in one convenient place plus exclusive worksheets and bonuses like a STEAM Project pack, our Science Project Pack is what you need! Over 300+ Pages!

• 90+ classic science activities  with journal pages, supply lists, set up and process, and science information.  NEW! Activity-specific observation pages!
• Best science practices posters  and our original science method process folders for extra alternatives!
• Be a Collector activities pack  introduces kids to the world of making collections through the eyes of a scientist. What will they collect first?
• Know the Words Science vocabulary pack  includes flashcards, crosswords, and word searches that illuminate keywords in the experiments!
• My science journal writing prompts  explore what it means to be a scientist!!
• Bonus STEAM Project Pack:  Art meets science with doable projects!
• Bonus Quick Grab Packs for Biology, Earth Science, Chemistry, and Physics

Subscribe to receive a free 5-Day STEM Challenge Guide

~ projects to try now ~.

Best Science Fair Ideas For 6Th Graders

As a 6th grader, participating in a science fair is an exciting opportunity to showcase your knowledge and skills in science, technology, engineering, and math (STEM). But coming up with an interesting, doable science fair project idea can be challenging.

If you’re short on time, here’s a quick answer to finding great science fair ideas for 6th grade: Choose a hands-on experiment testing a hypothesis in topics like food science, engineering, earth science, or human biology .

Popular choices include testing which materials work best for cleaning up oil spills, how wings and fins affect air and water resistance, which brand of battery lasts longest, and how music tempo impacts heart rate.

In this comprehensive guide, we will provide dozens of great science fair ideas for 6th grade students divided by scientific field. We’ll also offer tips on selecting the right project, conducting experiments, analyzing data, and presenting your work to make your science fair experience a success.

Physical Science Projects

Heat transfer and insulators.

One exciting project idea for 6th graders is to investigate heat transfer and insulators. They can explore how different materials affect the transfer of heat and how insulators can help retain heat. A simple experiment can involve testing the effectiveness of various materials, such as metal, plastic, and fabric, in insulating heat.

Students can use thermometers to measure the temperature changes and record their findings. This project not only allows students to understand the concept of heat transfer but also encourages critical thinking and problem-solving skills.

Sound and Light Experiments

Another engaging topic for 6th-grade science fair projects is sound and light. Students can explore how sound waves travel and the factors that affect their propagation. They can conduct experiments to demonstrate how different materials absorb or reflect sound waves.

Additionally, students can investigate the properties of light, such as refraction and reflection. They can create a prism using a glass or plastic container filled with water and observe how light bends as it passes through different mediums.

These experiments help students grasp the fundamental concepts of sound and light while providing hands-on learning experiences.

Simple Machines and Engineering

Introducing 6th graders to the world of simple machines and engineering can be both educational and entertaining. Students can explore the different types of simple machines, such as levers, pulleys, and inclined planes, and build their own models to demonstrate their functions.

They can investigate how these machines make work easier by reducing the amount of force needed. This project can also involve a real-world application, such as designing and constructing a small-scale bridge or a simple catapult.

By engaging in hands-on activities, students not only learn about the principles of engineering but also develop problem-solving and teamwork skills.

For more project ideas and detailed instructions, check out educational websites like Science Buddies or Education.com . These resources provide a wide range of science fair project ideas for 6th graders, along with step-by-step guides to help students successfully complete their projects.

Remember to choose a project that interests your child and aligns with their scientific curiosity, as this will enhance their engagement and enthusiasm throughout the process.

Life Science and Health Projects

Human body and senses.

One fascinating area of life science is exploring the human body and our senses. A great project idea for 6th graders is to investigate how our sense of taste works. Students can design an experiment to test how different factors such as temperature, texture, and color affect our perception of taste.

They can gather data by conducting taste tests with volunteers and analyzing the results. This project not only teaches students about the science behind taste but also allows them to develop their critical thinking and data analysis skills.

Plants and Ecosystems

Another engaging topic for 6th-grade life science projects is studying plants and ecosystems. One interesting project idea is to investigate the effects of different types of fertilizers on plant growth.

Students can set up several plant pots and use different fertilizers, such as organic and chemical-based ones, to see which fertilizer produces the best results. They can measure the height, number of leaves, and overall health of the plants over a period of time.

This project not only teaches students about the importance of nutrients for plant growth but also introduces them to the concept of sustainable farming practices.

Food Science Experiments

Food science is an exciting branch of life science that combines chemistry, biology, and nutrition. For a fun and educational project, 6th graders can explore the science behind baking. They can experiment with different ingredients, such as yeast, baking soda, and baking powder, to see how they affect the rise and texture of baked goods.

Students can document their findings through photos and written observations, and even create a recipe book of their successful creations. This project not only allows students to apply scientific principles to everyday activities but also encourages their creativity in the kitchen.

Earth Science Projects

Water conservation and filtration.

One fascinating earth science project idea for 6th graders is to explore water conservation and filtration. Students can learn about the importance of conserving water and come up with innovative ways to reduce water waste in their everyday lives.

They can also build a water filtration system to understand how pollutants can be removed from water sources. For detailed instructions and ideas, students can visit websites like www.epa.gov/stormwater or www.nationalgeographic.com .

Weather and Climate Studies

Weather and climate studies are another exciting avenue for 6th graders to explore in their science fair projects. Students can collect and analyze weather data, create weather models, and even predict weather patterns for specific regions.

They can also investigate the impact of climate change on weather patterns and explore ways to mitigate its effects. Websites like www.weather.gov and climatekids.nasa.gov provide valuable resources and information to support students in their weather and climate studies.

Geology Experiments

Geology experiments offer an exciting opportunity for 6th graders to delve into the fascinating world of rocks, minerals, and the Earth’s crust. Students can conduct experiments to understand the formation of different types of rocks, simulate volcanic eruptions, or investigate the effects of erosion on landscapes.

They can also explore the concept of plate tectonics and its role in shaping our planet. Websites like www.geology.com and www.nationalgeographic.org provide a wealth of information and experiments for students to explore in their geology projects.

Choosing the Right Project

When it comes to selecting a science fair project for 6th graders, it’s important to choose a topic that is both interesting and educational. Here are some tips to help you pick the right project:

Pick an Interesting Topic

The first step in choosing a science fair project is to pick a topic that genuinely interests you. Think about your hobbies, passions, or curiosities. Do you love animals? Are you fascinated by space? Consider choosing a project related to these interests.

When you are passionate about the topic, it will be easier to stay motivated and engaged throughout the project.

Make It Testable with an Experiment

Once you have chosen a topic, it’s important to make sure it is testable with an experiment. A good science fair project should involve a hypothesis that can be tested and proven through experimentation.

For example, if your topic is plants, you could design an experiment to test the effect of different types of fertilizers on plant growth. This will allow you to collect data and draw conclusions based on your findings.

Consider Time and Resource Constraints

When selecting a science fair project, it’s essential to consider the time and resources you have available. Make sure the project can be completed within the given timeframe and that you have access to the necessary materials and equipment.

If you have limited resources, consider projects that require simple materials or can be conducted using everyday household items. This will ensure that you can successfully complete the project without any major obstacles.

Remember, the goal of a science fair project is not only to learn about a specific topic but also to develop important skills such as critical thinking, problem-solving, and data analysis. So, choose a project that challenges you and allows you to explore the fascinating world of science!

Conducting Your Experiment

When it comes to conducting a successful science fair project, it’s important to follow a structured approach. This will ensure that your experiment is well-organized and yields reliable results. Here are some key steps to keep in mind:

Write a Clear Hypothesis

Before starting your experiment, it’s crucial to develop a clear hypothesis. This is a statement that predicts the outcome of your experiment based on your understanding of the topic. A good hypothesis should be specific, testable, and based on prior research.

For example, if your project is about plant growth, your hypothesis could be: “Increasing the amount of sunlight will result in faster plant growth.”

Follow the Scientific Method

The scientific method is a systematic approach used by scientists to conduct experiments. It consists of several steps, including making observations, asking a question, forming a hypothesis, conducting experiments, analyzing data, and drawing conclusions.

By following this method, you can ensure that your experiment is well-structured and that you are able to make accurate conclusions based on your findings.

Repeat Trials for Reliable Data

One important aspect of conducting a scientific experiment is the need to repeat trials. By repeating your experiment multiple times, you can ensure that your results are reliable and not due to chance. This will also allow you to identify any inconsistencies or outliers in your data.

For example, if you are testing the effect of different fertilizers on plant growth, you should conduct the experiment with multiple plants and repeat the process several times to ensure consistent results.

Remember, conducting your experiment in a systematic and organized manner is key to a successful science fair project. By writing a clear hypothesis, following the scientific method, and repeating trials for reliable data, you can ensure that your project is well-executed and yields accurate results.

Analyzing Data and Presenting Results

Organize quantitative data clearly.

When analyzing data for a science fair project, it is crucial to organize the quantitative data in a clear and organized manner. This allows others to easily understand the information you are presenting and draw meaningful conclusions from it.

One way to achieve this is by using tables or spreadsheets to arrange the data. By labeling each column and row appropriately, you can make it easier for the reader to interpret the data. Additionally, consider using headings or subheadings to categorize the data into different groups or variables.

This will help make your findings more accessible and coherent.

Highlight Key Findings in Charts/Graphs

Another effective way to present your results is by creating charts or graphs that highlight the key findings of your experiment. Visual representations of data can often be more impactful and easier to understand than long paragraphs of text.

Bar graphs, line graphs, and pie charts are just a few examples of visual tools you can use to showcase your data. Be sure to choose the appropriate type of chart or graph that best represents your data and effectively communicates your findings.

Consider using different colors or patterns to differentiate between different variables or data points, making it easier for the reader to interpret the information.

Prepare an Eye-catching Display Board

Once you have organized and analyzed your data, it’s time to prepare an eye-catching display board for your science fair project. Your display board should be visually appealing and capture the attention of the viewers.

Use colorful backgrounds, large fonts, and clear headings to make your board visually appealing. Including images, diagrams, or photographs related to your project can also help to engage the audience.

Remember to include key information such as your hypothesis, experimental procedure, results, and conclusions on your display board. This will provide the viewers with a comprehensive understanding of your project and its findings.

For more information on organizing data and presenting results, you can visit Science Buddies . They offer a wide range of resources and tips to help students effectively analyze and present their data for science fair projects.

Doing a science fair project is a great way for 6th graders to get hands-on experience with the scientific process. From physical science to life, earth, and health sciences, there are many cool experiment ideas to choose from based on your interests.

Make sure to pick a topic that’s testable with an experiment and allows you to systematically collect quantitative data. Follow the scientific method closely when performing trials and repeat often for reliable results.

Analyze your findings thoroughly and present them visually on well-organized charts and graphs.

With these science fair project ideas and tips, you’re sure to impress the judges and have fun applying classroom lessons in a creative way. Good luck!

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24 Shockingly Fun Electricity Experiments and Activities for Kids

Play dough circuits, LED magic wands, and more!

Electricity is all around us, so we tend to take it for granted. It’s a fascinating subject for kids, though, so they’ll love these electricity experiments and activities. You may need to invest in a few simple supplies for some of these activities, but you’ll be able to reuse them for multiple activities year after year. The hands-on experience kids will get makes the extra effort worthwhile.

1. Start with an anchor chart

Static electricity is most kids’ intro to this concept, and it leads nicely into electrical energy and circuitry. These colorful anchor charts help you teach both.

Get tutorial: Anchor chart about electricity and electricity anchor chart

2. Bend water with static electricity

Most static electricity experiments are quick and easy enough for anyone to try at home. This is a great example: Charge a comb by rubbing it against your head, then use it to “bend” a stream of water from a faucet.

Get tutorial: Water balloon experiment

3. Separate salt and pepper using a magic spoon

This static electricity experiment works because pepper is lighter than salt, which makes it quicker to jump to the electrically charged plastic spoon. So cool!

Get tutorial: Salt and pepper experiment

4. Move a bubble using a balloon

Balloons are a fun way to teach about static electricity. Combine them with bubbles for a hands-on activity students will really love.

Get tutorial: Bubble experiment

5. Flap a (paper) butterfly’s wings

Speaking of balloons, try using them to help a butterfly flap its tissue paper wings. Little ones’ faces light up when they see the butterfly come to life.

Get tutorial: Butterfly wing experiment

6. Make jumping goop with static electricity

Kick your static electricity experiments up a notch by mixing a batch of cornstarch “goop,” then making it “jump” toward a balloon. Amazing!

Get tutorial: Jumping goop experiment

7. Assemble circuits from play dough

When you’re ready to explore electrical energy, start with play dough circuits. You’ll need a battery box and mini LED lights. Mix up your own batches of insulating and conducting play dough using the info at the link.

Get tutorial: Play dough circuit experiment

Buy it: Battery box and clear LED lights at Amazon

8. Create a classic potato clock

A potato clock is an impressive way to kick off or end a unit on electricity. Your students will never look at potatoes the same way again.

Buy it: Potato Clock experiment kit

9. Find out if water conducts electricity

We’re always telling kids to get out of the water at the first sign of a lightning storm, so use this demo to help them understand why. You’ll need alligator clip wires, mini LED bulbs, and button cell batteries.

Get tutorial: Water electricity experiment

Buy it: Alligator clip wires , mini LED bulbs , and button cell batteries at Amazon

10. Whip up wizard wands

Lumos! If your kids are fascinated by Harry Potter and the world of magic, they’ll love this electricity project that turns ordinary sticks into light-up wands! Learn how it’s done at the link.

Get tutorial: Wizard wand project

11. Play a DIY steady-hand game

Electricity experiments like this one are perfect for exploring the idea of open and closed circuits. Plus, kids will have so much fun playing with them.

Get tutorial: Steady-hand game

12. Copper-plate coins using electricity

We all know electricity lights up a room and powers phones, computers, and even cars. But what else can it do? This electroplating experiment is a real jaw-dropper. 

Get tutorial: Copper plate coins experiment

13. Create an index card flashlight

This DIY flashlight really turns on and off! It only takes index cards, aluminum foil, mini LED bulbs, an button cell batteries.

Get tutorial: Index card flashlight

Buy it: Mini LED bulbs and button cell batteries at Amazon

14. Twirl some homopolar dancers

These sweet little twirling dancers are a fantastic demonstration of a homopolar motor. In addition to basic AA batteries, you’ll need neodymium magnets and copper wire.

Get tutorial: Homopolar dancers

Buy it: Neodymium magnets and copper wire at Amazon

15. Build multiple circuits

Create more than one circuit using play dough to create a series. The positive leg of the LED is near the battery terminal. Since the battery can only push the electricity one way, you can create a circuit of two or more to create a larger circuit.

Get tutorial: Series circuit experiment

16. Make a coin battery

Use a stack of coins (the more coins you use, the more electricity produced) to make a battery.

Get tutorial: Coin battery

17. Make an electromagnet

Make an electromagnet, or a magnet that uses an electric field, by wrapping wire around an iron nail and running current through the wire. An electric field is created around the nail and, sometimes, the nail will stay magnetized even when the coil is removed.

Get tutorial: Electromagnet project

18. Create a pencil resister

Learn about how resisters control the amount of electricity that flows through a circuit. Use pencils (a great way to use those old stubby pencils that are sharpened at both ends) as part of the circuit, and watch the brightness of the build change when the resistance in the circuit changes.

Get tutorial: Pencil resister project

Buy it: AA batteries , battery holder , LED light bulbs , and alligator clips at Amazon

19. Find out what conducts electricity

Figure out what objects are made of material that conducts or does not conduct electricity. Collect common objects such as a key, chalk, wood, and/or candle. Then, test each object by putting it between a battery and a light bulb and touching foil to the base of the bulb. If the bulb lights up, the object conducts electricity!

Get tutorial: What conducts electricity? experiment

Buy it: AA batteries and LED light bulbs at Amazon

20. Create electric paint

Use electric paint to create a circuit and light up a painting with batteries and LEDs. You will need a multimeter for this project (here’s how to use a multimeter ).

Get tutorial: Electric paint project

Buy it: Multimeter , electric paint , 9-volt batteries , LED light bulbs , and alligator clips at Amazon

21. Create an electromagnetic train

Show the connection between electricity and magnetism by creating a train with a battery and some neodymium magnets. One note: This is a project for older students who have close adult supervision, as neodymium magnets are very strong.

Get tutorial: Electromagnetic train project

Buy it: Neodymium magnets at Amazon

22. Create an electroscope with a soda can

An electroscope detects the presence of an electronic charge. Create a basic but effective electroscope with a soda can, insulation tape, aluminum foil, and a Styrofoam cup. Put it near various surfaces and see what happens.

Get tutorial: Soda Can Electroscope

23. Turn dirt into a battery

Electricity can even conduct in dirt. Create a dirt battery with galvanized steel screws (very important), an ice cube tray, copper wires, and soil. Make it more interesting by putting lemon juice or vinegar in the dirt.

Get tutorial: Dirt Battery Experiment

Buy it: Copper wire and galvanized screws at Amazon

24. Lemon battery

Use a lemon to create a battery with coins and a multimeter. It’s a great way to show students how literally anything can be a conductor of electricity.

Get tutorial: A Simple Lemon Battery

Buy it: Multimeter at Amazon

Love these electricity experiments and activities? Check out Easy Science Experiments Using Materials You Already Have On Hand .

Plus check out turn muggles into wizards with harry potter science experiments ..

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Turn Muggles into Wizards With Harry Potter Science Experiments

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6th Grade Science Fair Projects: Experiments, Investigations, And Model Building

January 10, 2024 //  by  Clover

Want to see your students dig into science without even realizing they’re studying? Showcase all your amazing STEM lessons by giving your kids the reins– they’ll jump out of their seats at the opportunity to build projects for the school science fair! Let your kiddos wow their parents, teachers, and peers with how they put their investigations into action. Check out these fabulous ideas and get ready to be amazed by your little scientific geniuses!

1. Carbon Sugar Snake Experiment

Who wouldn’t get excited by a ‘hand-made’ giant carbon sugar snake? This science experiment shows how a carbon snake is born by burning a mixture of baking soda and sugar. You’ll probably need to consider bringing this one outdoors, but the results will be totally worth it. 

Learn More: Kiwi Co

2. Irons in Breakfast Cereals

Did you know that extracting all the iron from your body could make two small nails? Let your students investigate this by finding out the amount of food-grade iron in their favorite breakfast cereals. For an even cooler school science project idea? Compare brands and make a bar chart to show the difference.

Learn More: Steve Spangler Science

3. Transform Milk into Plastic

How can my daily drinking milk become plastic? This activity will teach your kiddos the concept of plastic polymerization from natural resources such as milk and other dairy products. They’ll find it both disgusting and amazing!

Learn More: Science Buddies

4. The Competition of Skateboard Wheels

Have you got any skateboarding fans in your classroom? They’ll shred their way right through the science fair doors with this one! Bring on the research and inspect the material and tensile strength of various types of skateboard wheels to see how they affect the rebound.

Learn More: Education

5. Powered Boat by Baking Soda

Let’s level up the same science behind the classic baking soda volcano reaction with this fun boat race Have your kiddos place the materials for the experiment into a modified plastic bottle and then let them test their creations in a competitive race with fuel straight from the kitchen cabinet. 

6. Create Two-Stage Balloon Rocket

Give the science fair a glow-up with this two-stage balloon rocket experiment. Start by letting your kiddies build their rockets by tapping staws onto inflated balloons; thread some string through the straws and you’re ready for blast off! They’ll be learning about the same laws of motion used by airplanes and rockets!

7. The Sponge Gummy Bears

Behold! The mysterious secrets of gelatin! Turn your kids’ favorite gummy bears into giants by placing them in water and other solutions. This is an incredible food science project to learn about molecules and have FUN! The only rule- don’t eat your lab tools!

8. Motorized Tiny Characters

Have a science dance party! Your sixth-graders will love these DIY motorized characters who can dance from the simplest source of energy – a homopolar motor. This creative activity makes tiny dancers, but who knows what else your creative constructors will create?

Learn More: Babble Dabble Do

9. Magic Spinning Pens

This little experiment taps into loads of science skills for any stage. From the investigation to the trial and research, your learners will see what it takes to balance a pen by sheer magnetism. Sounds easy? Think again! They’ll need lots of adjustments in the magnet size and positioning to get a perfect balance.

Learn More: Frugal Fun For Boys And Girl

10. Create a WiggleBot

“Bleep-bleep-bloop!” Introduce your class to the world of robotics with this fantastic activity. The materials used are easy to find and they’ll love creating these tiny mini-creatures who can draw on their own! What a perfect introduction to learning about power, electrical energy, and its sources.

Learn More: Research Parent

11. Build an Electro-Magnetic Train

Let your kiddos tinker away with this super fun railway activity. They’ll create a hypothesis and speculate on what needs to be adjusted with the energy source and wire lengths to make the train run smoothly. This experiment is a great introduction to the scientific process for them!

Learn More: Frugal Fun For Boys And Girls

12. Handmade Holiday Greeting Card Circuits

Everyone loves a festive greeting card! Why not add some science into the holiday season by guiding your little learners to make circuits and embed them into their cards? They’ll explore variables that affect the flow of electricity such as using wood versus rubber. Their results will light up the room!

13. A Solar-Powered Robot Grasshopper

A scary robot grasshopper that vibrates when it’s placed near any light? WHAT?!? Have your kiddos record this cool grasshopper’s level of movement under different amounts of light and solar power to let them get a better understanding of how this cool tech works!

14. Camera Obscura by Recycled Cans

This handmade camera will take your kids back in time and will quickly become their favorite “new” tool. They’ll start to understand modern photography, by exploring the fundamental principles of how a camera works. What a fabulous pitch for the school science fair! Come on everybody, say cheese!

15. A Heat-Sensitive, Color-Changing Experience

Mood rings and lipsticks that change color are always fascinating for kids. You’ll uncover the magic of these cool items by introducing them to the color-changing element of thermochromic pigment. Create some amazing color-changing slime as an example and let your 6th graders get gooey while they learn more! 

Learn More: Left Brain Craft Brain

16. Make Your Own Crystal Landscapes

It’s alive! Or is it? Let your kids extend their middle school science understanding by delving into the mind-blowing phenomenon of crystal growth. They’ll create a spectacular crystal landscape that’s sure to add dazzle to your science fair. When purchasing ingredients in the US, modify your recipe by using Epsom Salt.

17. Roots Grow Versus Gravity Experiment

Gravity keeps us on the ground, but does it also affect plants’ growth here on the earth? Let your kiddies find out with this fun windowsill activity that’ll be sure to blow minds at the science fair. They’ll be amazed to see roots growing every which way, as they use gravity as a variable!

18. Seafloor Spreading and the Earthquakes

What happens when the seafloor spreads? Let’s bring all the science of tectonic plates to life! Using some folded paper and a cardboard cylinder, your kiddos will create a working model of how new rock is formed on the ocean’s floor! 

19. How Plants Help Prevent Tsunami Impact

We all know how destructive the force of a tsunami can be, but did you know that planting trees can help prevent destruction from these natural disasters? Have your kiddos create their very own coastal landscapes, complete with buildings and greenery, then have them recreate a tsunami with some water and assess the damage! 

Learn More: YouTube

20. How Acidic Water ‘Eats’ Rocks

Can rocks be dissolved in a liquid like sugar in coffee or tea? In this geology science experiment, your students will use a scientific method to investigate how rocks are being ‘eaten’ by acidic water. In your classroom, you’ll be using vinegar concentrations, but you can extend your kids’ learning by exploring what sorts of acids might be eroding rocks out in nature.

21. Cutting Ice Cubes With Wire

Give a whole new meaning to “break the ice”! Did your middle school students know that they can cut through an ice cube with just a piece of wire and some weights? Demonstrate the method for them as they learn about regelation and the physics of water. All that’s left is for them to have a go themselves! 

22. Growing Bateria

Don’t do this activity after lunch! Have your kiddies find samples around their homes or in school for testing to reveal the hidden bacteria in each place. It’s easy to make up some petri dishes and then all your little microbiologists will need to do is swab their samples! The results might surprise them!

23. Heart Pump Model

It might be ‘heart’ to believe, but your kiddos can make a model of a human heart ventricle, using everyday items from around the house! By following the instructions, they can assemble their model made from plastic bottles, balloons, and straws, helping them learn about the complex inner workings of the cardiovascular system. 

Learn More: Tina’s Dynamic Home School Plus

24. Building a Stick Bridge

Explore the vast array of bridge designs across the world and put your learners’ creativity and engineering skills to the test. Your kiddos will experiment with popsicle sticks to build bridges and find out which model is the safest and holds the most weight.

Learn More: Scholastic

25. Building Stable Frameworks for Earthquakes

Your future engineers will explore building construction from a safety perspective with this next idea!  Have them build some different structures with popsicle sticks then see how they stand up to a (kiddie-made) earthquake!

Learn More: Science Love to Know

26. Forming Magic Cloud

This easy 6th-grade science project brings a few welcome clouds to the sunny atmosphere of your science fair. Make a cloud in a bottle using some rubbing alcohol and send your fair-weather friends packing. Want extra experiments? Try twisting the cap back, re-pressurizing the bottle, and see what happens next!

27. Designing Biodomes

This amazing engineering project challenges your kiddos to create a scale-model biodome! They’ll be able to observe reactions in ecosystems, environments, and food chains, and at the same time, explore the energy flow. What a super hands-on way to introduce them to the topic of plants and animals’ basic needs and the interdependence of an ecosystem.

Learn More: Teach Engineering

28. The Archimedes Squeeze

Challenge your class to test Archimedes’s principles like real engineers back in the day in this hydrodynamic project! Using aluminum foil balls varying in diameter they’ll learn all about water displacement as they submerge them and weigh what spills over. They’ll be making a splash in the name of science!

29. Cleaning Coins

Let your kiddos explore the science of cleaning! Give them a couple of different cleaning solutions to experiment with to find out what works and what doesn’t! Then brainstorm and further the experiment to figure out why some things work better than others.

Learn More: Gally Kids

30. Make Your Own PH Indicator

Don’t have an expensive pH tester? Well, it turns out you don’t need one! Explore the pH scale and let your middle school students make their own indicator solution with a simple ingredient from the grocery aisle; red cabbage! Grocery store science at its finest!

Learn More: Compound Interest

31. Skittles Science Fair Project

Show off all the colors of the rainbow in this beautiful experiment. We’re sure your kiddos love playing with food, especially candy, and this is certainly no exception! This is a fun and visually impressive way to help them learn about diffusion and balanced solutions! Who knew science could be so colorful?

32. Tooth Decay Egg Experiment

We all know that lots of sugary drinks can damage our teeth, but which ones are the worst? Challenge your kiddies to find out in this simple experiment! Teach them about tooth enamel and how food can damage it, using eggs to represent teeth. Let them dunk their eggs into different drinks and see what happens! They’ll be shocked by the results!

Learn More: The Forsyth Institute

33. Lightning in Your Mouth

If you tell your kiddos that they can create lightning in their mouths, it’s likely that they won’t believe you! All you’ll need to prove them wrong is a mirror, a dark room, and some wint-o-green flavored Life Savers to show off some amazing electrical power. Your students will learn about how lightning is made whilst snacking on a delicious treat!

Learn More: Exploratorium

34. Popping Candy

Using another delicious treat, investigate why popping candy pops. Set up some bowls with oil, water, or vinegar, and have your kiddos add the popping candy! All that’s left is to step back and watch the magic happen!

Learn More: Science Sparks

35. Fruit Rot

This one is certainly a stinky experiment! Let your little scientists test to see which fruit rots the quickest and they’ll learn about the ripening process, too. You can try adjusting this experiment to test what substances are the best for preventing fruit rot. Just make sure they don’t eat any of the fruit!

36. What Attracts Insects

If you don’t like creepy crawlies, look away now! In this experiment your learners will set up bug traps to determine what exactly attracts bugs; heat, light, or both! They’ll also discover exactly what kind of heat and light works the best for attracting certain bugs, whilst learning more about the insect life cycle, too.

Learn More: Science Projects

37. Paper Towel Experiment

Which paper towel is the best for absorbing liquid? This super simple experiment is a fantastic way to have your kiddies focus on the scientific method and process. Have them test out different brands of paper towels to test which mops up spills most efficiently! Finally, an experiment that cleans itself up!

Learn More: Explorable

38. Mini Marshmallow Launcher

This is certainly a fun experiment to try! Using a plastic cup cut in half and a balloon, your kiddos will build their very own contraption to launch some mini marshmallows. This activity is a super fun introduction to physics, and we’re pretty sure there will be some taste testing going on here too, in the name of science, of course!

Learn More: Science Fun

39. Paper Airplane

Can your kids come up with the ultimate paper airplane? Let them investigate and discover the best design for a paper airplane by testing out different models for their distance, accuracy, and flight time. You can find many examples of paper airplane designs online, and you can also challenge them to create their own paper airplane designs. Ready for take-off!

Learn More: Science Fair Math

40. Simple Ant Experiment

Take learning outside with this fantastic idea! Have your students find some ants, then place a few different pieces of food nearby. As they come back over the next few hours, they’ll make observations and determine which foods the ants liked best. Just take care to not get bitten! 

Learn More: Mother Natured

41. DIY Taleidoscope

A taleidoscope is just like a kaleidoscope, but without an end to it, meaning that it is perfect for your kiddos to explore the world around them! Challenge them to have a go at making this interesting contraption to learn more about mirrors and light reflection in a fun, hands-on way.

42. Walking on Eggs

You’ll definitely want to do this one outside! By learning to stand in a way that distributes their weight evenly, your students will be able to walk across these eggs without breaking them. It’s a super exciting way for them to learn about weight distribution and the amazing properties of eggs. They’ll soon be ‘ egg-sperts’ on this topic!

43. St Patrick’s Day Fizzing Pot

This experiment is a unique take on the classic volcano experiment but with a St Patrick’s Day twist! Your kiddies will learn about chemical reactions as they predict what will happen when they add baking soda to their vinegar and green food dye mix! Remember to add some golden glitter; a leprechaun’s pot isn’t complete without some gold in it!

Learn More: Little Bins For Little Hands

44. Seed Germinator

Find out about the amazing properties of a humble seed and how they grow! Your little botanists will be able to witness for themselves how seeds turn into seedlings as they let these ones germinate on a petri dish! As the seedlings grow, your kids’ knowledge will too.

45. Naked Egg Experiment

Avert your eyes! These eggs are naked! By making their own “naked” eggs, by placing regular eggs into vinegar, your students will learn about the process of osmosis and chemical reactions! They might even notice that the egg changes size once it’s been stripped of its shell! 

46. Pouring Water Down a String

Your kiddos will be amazed as they watch water walk on a tightrope in this amazing experiment! It’s so easy to try with just a string, an empty clear container, and some water! Soak the string in water then hold it into the glass and see how the water moves down the string. They’ll be exploring surface tension as they marvel at how the water appears to defy gravity!

Learn More: Metro Family Magazine

47. Steady Hands

Create your own “Operation” game right in your classroom with a battery pack and some wires. Have your learners carefully contort the wire to create an obstacle course that they’ll then need to navigate without making contact and setting off a buzzer!

48. Water Color Chemistry

Sometimes known as the iodine clock experiment, this fun activity is a great opportunity to get (gloved) hands-on with some chemicals! Using a variety of chemicals, your kiddos will watch as starch and Vitamin C battle it out; the starch trying to turn the iodine in the mixture blue. What are you waiting for? Grab some safety goggles and get mixing! 

Learn More: Science Bob

49. Cell Phone Stand

This project is super simple and your 6th graders will be sure to find it useful. Have them make their own stands for their cell phones. They’ll love having an easy way to show someone a meme or hold their phone up as they film a TikTok dance. Grab some popsicle sticks and paper clips and get gluing!

50. Floating Ball Trick

Using air and science your learners can make people believe they’re making a ping pong ball float in mid-air! Start them off with a plastic bottle or paper cone, and a straw, and once they’ve assembled it, they can use their breath to make the ball float; so cool!

51. Fidgeting With The Center of Mass

Make this complicated physics topic a little easier to understand for your learners by relating it to the infamous fidget spinner! Using a light-up fidget spinner, your kiddos can experiment by removing some of the lights to change how the mass is distributed. Then you can encourage them to observe any differences in how the toy moves as these changes are made! 

Learn More: From Engineer To SAHM

52. Catapult to First Prize

For this exciting experiment, your kiddos will need to build their own catapult! You can guide them to make one easily out of some recycled materials like some pieces of wood, or a wooden spoon and some paper towel rolls. All that’s left is to grab some objects, take aim, and send them flying!

Learn More: Education Possible

53. Balloon Lungs

Not only is this a fun experiment to make, but it will also teach your kids an important lesson about lung health and safety! Have them cut the bottom off a plastic bottle, then use balloons and straws to create ready-to-inflate lungs. This amazing idea gives them a visual of how our lungs do their job!

Learn More: Surviving A Teacher’s Salary

54. What Do Owls Eat?

Are your kiddos curious about animals, their diet, and their digestion? Well, if they aren’t, they will be soon! Owls are particularly unique in how they swallow and digest their food in that they swallow their food whole, but cannot digest parts like fur or bones. Take your class out in search of some owl pellets and get learning!

Learn More: Gift Of Curiosity

55. Potato Battery

Is a science fair even a science fair if it doesn’t feature this classic science experiment? Have your little scientists explore the electrifying properties of the humble potato! Did you know it also works with any fruit or vegetable high in potassium? Let your class get creative and make some energy!

Learn More: Kidz World

57. Build a DIY Grow Box

If it’s too cold out to grow plants outdoors, have your young scientists build their own grow boxes! Line a box with foil, add a UV lamp, and watch the magic happen! They’ll love the chance to grow a whole host of different plants and monitor their progress.

Learn More: Uplifting Mayhem

58. Purify Water With Charcoal

You’d never think something as dirty as charcoal could actually be used to clean! In this science experiment, your students will discover ways to clean drinking water by creating a filter using activated carbon. This simple experiment will shine a light on the importance of clean drinking water and is sure to be a science fair eye-opener!

Learn More: The Homeschool Scientist

59. Acid Rain Experiment

Simulate the effects of acid rain on plant life in this hands-on science experiment! Let your kiddos observe the effects of this weather phenomenon by observing how plants react when placed in a mini greenhouse containing vinegar versus one containing only water. The results are truly drastic!

Learn More: STEAM Powered Family

60. Build a Barometer

This easy science project encourages your kids to make a barometer to measure air pressure and weather changes! Use household items, including metal cans, wire, and rubber bands, to make to create this scientific instrument and track air pressure along with weather changes. They could even try their hand at predicting the weather!

Learn More: KC Edventures

61. Build a Wave Machine

A few simple materials are all you need to make this ingenious wave machine! These are useful for studying sound waves, energy transfer, frequency, amplitude, and more! A bit of measurement, some skewers, clay, and the versatile roll of duct tape are all your kiddies will need to make this science project come to life.

Learn More: Engaging Science Labs

62. Build a Solar Oven

This classic childhood science project is one that has endured the ages – the solar oven! Pizza boxes, foil, and some plastic wrap turn a simple chunk of cardboard into an amazing experience that teaches your class all about reflection, refraction, heat, and energy. Not to mention, the end result is absolutely delicious! Solar s’mores, anyone?

Learn More: Child Sci

63. Make Mummified Apples

This creepy science project results in a great display that blends history and science! After a bit of research on mummification in your ancient Egyptians topic, let your little ones try out the process on some apples. Have them try out different substances such as salt and baking powder to see which is most effective!

Learn More: Raising Arizona Kids

64.  Popcorn Investigation

Have you ever noticed how different brands of popcorn always produce different amounts of leftover kernels? It’s time to set your learners on a mission to discover which brands produce the most and least amount of waste! Have them work through the scientific process of testing, recording, and comparing in this fun project!

Learn More: K Muska Science

65. Windmill Engineering

This wind-powered science project provides a firsthand look into the power of wind and wind turbines. Using household materials, your young scientists will create a windmill model and engineer it to power a Lego Minifigure Lift. What a great way to encourage perseverance and ingenuity!

66. Learn to Code With Robots

Beginners and enthusiasts alike can never go wrong with a science project that includes coding! Your young coders will show off the process of designing and writing the code for high-tech robots to complete various tasks. This colorful coding mat makes an amazing addition to any science fair display!

Learn More: Facebook

67. Test Sunscreen Effectiveness

A blue-ribbon winning science fair project for anyone who loves a day at the beach.  This project takes a look into the effectiveness of different sunscreens in order to determine which is better to use. This project is a great test of the scientific method and provides a real-world connection that is invaluable info for anyone who visits the booth.

Learn More: Pinterest

68. Research and Compare Sugar Content

This eye-opening science fair project shines a light on the sugar content in what we drink every day. Taking a variety of drinks, your kiddies will predict and measure the actual sugar content of each drink to provide a visual display of the amount of sugar in each brand. This one will definitely make them think twice on their next visit to the vending machine!

69. Play With Magnetism

This fun science project seeks to show your learners the effects of magnetism and ingenuity. Using earth magnets, batteries, and a few other simple materials, this experiment seeks to create a fun spinning top toy that is self-powered, through the presence of a magnetic field! Who said science isn’t like playtime? Definitely not a middle schooler with a rocking science fair project like this!

70. Make Pumpkin Slime

This gross science experiment puts a fun twist on the classic slime-making project. Add water, liquid glue, and liquid start to a healthy serving of pumpkin guts, and watch the magic happen! Your kids will squirm as it morphs into a disgustingly viscous substance that’s perfect for Halloween fun!

71. Baby Product Testing

Some of the best science fair projects are ones that are relevant, valid, and helpful! This science fair project is great for any kids in your class who are big brothers or sisters! Have them dig into the scientific method and determine which diapers are more absorbent and offer more bang for your buck!

Learn More: Kids Out And About

72. Stain Fighting Science

Another promising product-testing science fair project is to determine the usefulness and effectiveness of different cleaning solutions. This project has your kids test different laundry products and use the scientific method to determine the best choice for removing hard-to-clean stains. As an extension activity, add a research project on PFAs.

Learn More: Inspiration Laboratories

73. Test the Five-Second Rule

Ah yes, the timeless ‘five-second rule’. We all know it, and the story goes that any food dropped on the floor is still safe to eat if picked up within five seconds. But is that true? This fun science experiment lets your kiddos test that hypothesis and uncover the real truth behind the five-second myth by analyzing bacteria growth on dropped food products.

Learn More: Sassy Cassy Sews

74. Salty Circuits

Did you know that you can create a model of a circuit using salt? It’s new to us too! This science fair project models how circuits can be created by using salt, liquid watercolor, and a few bits of electrical wire. This is an easy science fair project for kiddos that will definitely light up the judges.

75. Make the Best Cookies Ever!

Everyone loves a cookie, so why not turn them into a science fair project? Get your learners looking into how different amounts and types of fat (butter, shortening, coconut oil, etc) have an effect on the overall taste and texture of a cookie. While it takes some prep and a few rounds of baking, this science fair project is definitely a tasty way to win!

76.  Test Teeth Whiteners

Product testing is always a popular choice for science fair projects. Your students can use a project like this one that uses stained hard-boiled eggs as stand-ins for human teeth. Guide them to come up with a hypothesis, and then test different kinds of toothpaste and teeth whiteners to determine which one is best!

77. Study Sibling Similarities

Do siblings have similar fingerprints? This unique science fair project will see your kiddos take a deep dive into how fingerprint types occur within families and sibling groups. By sampling many family groups, they can discover that fingerprint types are also inherited traits!

Learn More: Easy Peasy Science

78. Just How Greasy Are Those Chips?

If your hands are always covered in grease after eating chips, what does that say about the amount of grease in the whole bag? In this science fair project, your kiddos will aim to prove the amount of fat in chips by removing it and determining its overall weight. It sounds gross, but it’s going to be eye-opening!

79. Science for Sports Fans

The perfect project for your baseball fans! Grab a few different styles of baseball bats and let them complete this experiment to uncover which bats have the capability to hit the furthest. What an amazing way to work through the scientific process for your kinesthetic learners!

80. Tiny Tesla Coils

Tesla coils are amazing devices, but they’re huge and can be quite dangerous. Have your learners bring this down to a manageable experiment by building their own mini Tesla coils with just a few simple materials. This project will surely be a bright spot at the science fair this year!

81. Build a Water Fountain

This STEM-focused project seeks to examine water circulation by using recycled materials to create a homemade water fountain. Plastic bottles, some tubing, and water are just a few resources your kiddies will need to get moving on this amazing idea. 

By 6th grade, your child is a Science Fair expert! We have rounded up the best sixth grade science fair ideas. The projects get more and more challenging – but still very doable with minimal involvement from adults. So stay back and enjoy your child’s scientific curiosity and diligence.

In this post, we’ve assembled 19 great science fair project ideas for 6th grade. We link each project description to its original source, where you can get more information and step-by-step instructions.

Does Tea Stain your Teeth?

Using eggs and experimenting with different liquids, you can test to see what liquids, if any, will stain teeth.

Recommended for Grade 6.

Source: www.education.com

How Do Different pH Levels Affect Bean Growth

The purpose of this experiment is to test how beans grow in different pHs, and see if the chemical used to change the pH affected the beans’ response to the different pHs.

Source: www.freesciencefairprojects.com

Correlation between ring finger length and athletic ability

Does the length of your ring finger determine how accomplished of an athlete you are? This project guides you through the steps to find out.

Recommended for Grades 6-7.

Source:  www.all-science-fair-projects.com

Do People Have a Dominant Side of Their Brain?

These experiments will help the scientist to determine if people have a dominant hand, foot, eye or ear. A great behavioral discovery project.

Recommended for Grades 5-6.

Source: www.faculty.washington.edu

Playground Teeter-Totter

The goal of this project is to create a compound machine using pulleys and levers that would be able to lift a Barbie doll up and down by pulling a string by the player. A common problem on the playground is that you sometimes can’t find another person to go on the teeter totter with you.

Recommended for Grades 4-6.

Source: www.projects.juliantrubin.com

Making a Simple Sundial and Testing Its Accuracy

Learn how to make a sundial and then test its accuracy with a series of experiments.

Recommended for Grades 4-6

Source: www.explorable.com

Use the Energy in a Peanut to Heat Water

Just about everything has potential energy stored in it. The problem is releasing that energy to be able to do some work.

A tiny peanut contains stored chemical energy. When we eat them, the stored energy is converted by our bodies so we can do work. We can also use the energy in a peanut to heat a container of water.

Recommended for grades 4-6

Source: www.energyquest.ca.gov

Oil Spill Experiment

This experiment will demonstrate the detrimental effects of oil spills to marine life

Make Your Own Microscope with Water

Make a simple microscope using water and take a closer look at the world around you.

The lens you create with water works like a microscope or magnifying glass, allowing you to see objects in much greater detail than if you were just looking with the naked eye.

Source:  www.sciencekids.co.nz

How Does the pH of the Soil Affect the Type of Plants?

Plants’ survival can be based on the pH of the soil. This experiment lets you test soil pH based on the type of plants that live there.

Source: www.livescience.com

Surface Tension Experiment

Surface tension is one of water’s most important properties. It is the reason that water collects in drops, but it is also why water can travel up a plant stem, or get to your cells through the smallest blood vessels. You can experiment with surface tension using just a few household items.

Source: www.hometrainingtools.com

The Mechanics of Carnival Games

This site gives you the background and instructions for answering this age old carnival question…..Why are the “simple” games at carnivals so hard to win?

Source: www.sciencebuddies.com

Metal Conductivity

Discover which metals are best for a pot or a handle on the pot. This site guides you through the process of scientific discovery.

Taste and Smell

This experiment tests the relationship between taste and smell. The site offers great guidelines, links for research and much more.

Recommended for Grades 6-8.

Source: www.sciencefair.math.iit.edu

Does Chewing Gum Make You Smarter?

This will test the theory that chewing gum will help you perform better on tests and other mental challenges.

Recommended for grades 6-8.

Source:  www.education.com

Which Gear Gives the Best Performance in a Kart Race?

These two scientists give you all of their tips to reproduce this experiment on your own to determine who will win your race.

Source: www.pbskids.org

How to Power a Radio with Solar Power

Learn how to power up a radio using the power of the sun!

Source:  www.makeitsolar.com

The Science of Tsunamis

Find out what effect the water depth has on a wave’s velocity.

Recommended for Grade 6-8.

Source: www.sciencebuddies.co

Cleaning Coins

This project explores the effectiveness of various cleaning solutions in cleaning tarnished and oxidized coins.

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Science Struck

A Really Interesting List of 6th Grade Science Experiments

Science experiments help kids understand certain basics and fundamentals of science in a fun way. Experiments are set up according to their level and skills. In this ScienceStruck article, you shall find some topic ideas and experiments for 6th grade students.

Like it? Share it!

Reaching 6th grade is fun because then you become eligible to perform middle school experiments that may capture your interest a lot. Performing science experiments is not only interesting, but it also develops analytical skill that may prove useful in the future when working on research projects. Students are enthusiastic about performing science experiments because it gives them the opportunity to exhibit their analytical and creative skills.

Science Experiments for 6th Graders

You should go through the laboratory safety guidelines and the procedure for handling the laboratory equipment before starting any experiments to avoid any mishaps. In 6th grade, students are allowed to handle instruments and samples that are safe, and do not involve any risks. Handling fire or strong chemicals is usually not a part of 6th grade projects. Here are some fun science experiments for 6th graders.

The Egg Experiment

This is one of the most commonly used substance for 6th grade science experiments. With eggs students can learn rules and laws of science. They can perform a number of practicals, that can include observation of eggs sinking or floating on changing the density of the water, or the difference in composition of hard-boiled eggs and raw eggs.

Set up the experiment in different containers. The first containing plain water, the second containing sugar and the third containing salt. Now, dip the eggs in each container and record the results. Try to analyze the results with the help of your teacher. You can also find out the differences between hard-boiled eggs and raw eggs by allowing it to spin.

Evaporation of Water

In this science activity you will determine the rate of evaporation of water under different intensity of light. You will have to construct several boxes installed with electric bulbs having different wattage. The containers are simultaneously filled with water and the bulbs are lit. You also need a controlled experiment that will be devoid of bulb. You will notice that the rate of evaporation is highest in the container having maximum power of bulb. This happens because water changes to vapor form more quickly under intense temperature. Since the surrounding temperature of the bulb with highest power is more, so the rate of evaporation is also more.

Make a Periscope

A periscope can be used to see objects when you are in a concealed position. To make one, you will require two pipes, at least 10 inches long. The diameter of one pipe should be slightly larger than the other, so that one can slide over the other. You’ll need 2 elbow joints, each matching the diameter of either pipes. Also you’ll require 2 circular mirrors, along with some super glue.

To begin with, stick the mirrors in the elbow joints at a 45 degree angle. This is the precise angle that reflects the light is such a way that it lets you see the best view. Now, fix the appropriate pipe into the respective elbow joints. Finally, slide the larger pipe on to the smaller one, and your periscope is ready to use.

Inflate a Balloon by Itself

This is a fun experiment that teaches you how a chemical reaction can inflate a balloon. You’ll be needing a small balloon, a test tube, vinegar, funnel, and a teaspoon of baking soda.

Fill the test tube half way with vinegar. Then, stretch the balloon a bit, and use the funnel to pour the baking soda into it. Now, carefully stretch the opening of the balloon over the mouth of the test tube and ensure that the baking soda does not fall in the tube. Once you’ve ensured that the balloon snugly fits over the mouth of the test tube, lift the balloon and tap it, so that the baking soda falls into the vinegar.

When the baking soda falls into the vinegar, the solution turns into carbonic acid. This makes it unstable, and it releases carbon dioxide, which rises up and inflates the balloon.

Make it Rain

This simple experiment is a fantastic way to learn how the changes in temperature bring about rain. You’ll need a glass jar, some steaming hot water, a dish big enough to be placed over the jar, and some ice cubes.

Pour the boiling water into the jar, filling about a third of the space. Place the plate on top of the jar, and wait for a couple of minutes. Put the ice cubes on the plate, and observe what happens inside the jar. You’ll begin to see droplets of ‘rain’ sliding along the sides of the jar.

6th Grade Science Project Ideas

• Do different types of knots affect the breaking strength of a rope?
• How do volcanoes work?
• What is hydropower? How is it generated?
• What is the correlation between music and maths?
• Do plants grow better if you play music to them?
• Why do apples turn brown after they are cut and left standing?
• How do you determine the pH of soil samples?
• How a prism gives a rainbow color pattern when white light passes through it?
• How do mosquitoes bite?
• What is the difference between incandescent and LED lights?
• Why do moths and insects hover over lights?
• Does wiping a doorknob with an antibacterial wipe really reduce the number of bacteria?
• Do some plants grow better inside than outside?
• How do gasoline engines work?
• How do you compare vinaigrette vs Coca Cola?
• What is the effect of differing kinds of light upon plant growth?
• How to find out camouflage in insects and animals?
• Does the intensity of cleansing depend on the amount of detergent?
• How do different flame retardants affect the flammability and burning rate of cotton?
• How tides are formed?
• How the fizz is formed in aerated drinks?
• How does a simple machine work?
• How does UV light affect the growth of bacteria?

Apart from these, you always have the liberty to come up with new ideas on topics that interest you the most. Set up an experiment and explain the observations with accurate reasoning and logic.

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6th Grade Science Fair Projects

6th grade science fair projects can be fun as well as educational. The key to finding a good project idea is to pick one that can be completed in time, uses materials you can actually find, and incorporates the scientific method . You can turn any science project into a science fair project by finding one factor you can change (the independent variable ) and measuring its effect on another factor (the dependent variable ). Either predict what you expect to happen or form a hypothesis , record the data, determine whether it upholds the prediction, and report your findings.

Here is a collection of 6th grade science fair project ideas. The projects include chemistry, biology, physics, geology, weather, environmental science, and engineering.

Grow Geodes in Egg Shells

Geodes form when minerals crystallize from water trickling into holes within rocks. While natural geodes take millions of years to form, you can make your own geode in a few hours or days. Use an eggshell as your “rock” and crystallize salt, sugar, borax, or Epsom salts.

Make It an Experiment: Turn this cool project into a science fair experiment by predicting how temperature affects crystal formation. You can explore the effect of rate of cooling on crystallization by insulating the growing geode with a hot water bath, leaving it at room temperature, and refrigerating it.

Build a Structure to Withstand an Earthquake

Explore the principle engineers use to construct buildings to withstand seismic events like earthquakes. Use styrofoam plates as the “ground” and make buildings using craft sticks. Join the craft sticks to each other using mini-marshmallows. Use a sharp pencil to poke holes in the bottom of the plate to insert craft stick supports. These will be the building’s foundation. When you have finished construction, shake the plate from side to side to simulate an earthquake.

Make It an Experiment: What type of structure survives the simulate earthquake the best? Is it rigid or flexible. You can perform a similar simulation by constructing a structure meant to withstand a hurricane. Use a fan as the wind and examine how the type of wall affects the building’s stability.

Control the Rate of a Color Change Reaction

Many color change chemical reaction are clock reactions. What this means is that if you mix the same amounts of chemicals under the same conditions, the color change occurs after the same time interval (like clockwork). The blue bottle reaction and vanishing valentine are excellent clock reactions for 6th grade science projects.

Make It an Experiment: Predict whether changing the concentration of the starting chemicals or the temperature of the liquids will increase or decrease the speed of the color change. Perform the experiment, record the results, and see if you can explain them.

Turn Milk Into Plastic

Many common plastics come from petroleum, but you can make a plastic from milk . Basically, all you do is curdle the milk . Heat 1/2 cup of milk or heavy cream over low to medium heat until it simmers. Stir in lemon juice or vinegar until the mixture starts to thicken. Remove the pot from heat. When the liquid has cooled, rinse the curds with water. These curds are a natural casein polymer. You’ve made homemade plastic!

Make It a Science Experiment: Your experiment might explore the properties of this plastic, including how far it will stretch, how much weight it can hold, and whether it can be used as a modeling compound. Another option is to compare the amount of plastic you get from cow’s milk compared to goat milk or sheep milk. Do you get the same amount of plastic from cream as from milk?

Explore the Pigments in Leaves

Most leaves look green from chlorophyll, but actually contain several different pigments. In the autumn, plants make less chlorophyll, so you can see the other colors. You can use paper chromatography to see pigments in leaves. To do this, grind leaves to break open their cells (a blender works well), place them in a small jar, add just enough alcohol to cover the leaves, and insert a long strip of coffee filter paper into the jar. You want one end of the paper strip in the leaf mixture and the other end extending up and outside of the jar. As liquid moves up the paper, it pulls pigment molecules along. Smaller molecules move faster, while larger molecules move slower. Over time, this separates the colors.

Make It an Experiment: See if you can identify which pigments the leaves contain based on their colors. Gather leaves from a single plant from multiple seasons. Compare the pigments from spring, summer, and autumn. Can you tell the season by the pigments present in the leaves?

See the Iron in Breakfast Cereal

Use a magnet to separate the iron from breakfast cereal so you can actually see it. To do this, pour one cup of crushed cereal into a zipper-lock bag and fill the bag half full of warm water. Shake the bag to mix the contents and allow at least 20 minutes for the flakes to dissolve. Place a strong magnet against the side of the bag and slosh the contents around so the magnet can capture the iron. Finally, keep the magnet up against the side of the bag but tilt the bag so you can see the iron. It will appear as tiny black specks.

Make It an Experiment: Compare the iron in different cereals. Do all cereals contain about the same amount of iron? Does it look the same in every product?

Use Eggs to See Which Drinks Stain Teeth

Tooth enamel is the mineral hydroxyapatite (hydrated calcium phosphate), while egg shell is calcium carbonate. Egg shell is more porous than tooth enamel, so it stains more quickly. Soak eggs in tea, coffee, soda, and other liquids to determine which ones stain teeth. Common drinks also contain acids in addition to pigments, so some drinks dissolve egg shell (and teeth). Can you identify them?

Make It an Experiment: After staining the eggs, predict which methods work to remove the stains. Test these methods and see if you can discover how they work.

Use Household Chemicals to Clean Old Coins

Learn about oxidation, which includes tarnish, patina, and rust. Explore the cleaning power of common household chemicals. Soak discolored coins in soap, laundry detergent, lemon juice, salt water, soda, ketchup, vinegar, salsa, or any other products you like. After soaking, remove the coins and rinse them to see which ones clean the coins the best.

Make It an Experiment: Part of making this project an experiment is predicting which chemicals make the best cleaners. Also, you’ll have to determine the best amount of time to soak the coins. You can compare how well these chemicals work on different types of coins (like pennies, quarters, and nickels). Do you think the metal composition of the coin affects how well the cleaners work?

Make a Graphite Circuit

Graphite is a form of carbon that conducts electricity. You can draw a line of graphite using a pencil to make a simple circuit . Use a battery with both terminals on top (like a 9V). Turn the battery upside down on the paper and draw heavy pencil lines whether the terminal rest (don’t connect these lines!). Take an LED and bend the wires apart so they can rest separate on the paper. Rest each wire on a pencil dot. Complete the circuit by drawing lines to connect one terminal of the battery to one end of the LED light and the other end of the battery to the other LED wire.

Make It an Experiment: Explore whether the length or thickness of the line affects how brightly the LED glows. You can make a circuit using aluminum foil strips instead of graphite, too.

See Whether Food Color Affects Its Flavor

Examine the effect of color on perceived taste by coloring different drinks with food coloring and asking subjects to describe their flavor.

Make It an Experiment: Compare the flavor of colored and uncolored versions of the same drinks. Start with drinks that don’t have any color so subjects are less likely to guess the drink flavor in advance.

Test Whether Temperature Affects Maximum Balloon Size

Start with a package of party balloons (ideally all the same color and brand). Part of the fun of this science fair project is planning how you can test the effect of temperature on balloon size. Consider your options in terms of indoor versus outdoor weather and access to freezers and saunas. You need to blow up a balloon and measure its maximum size before it pops. Either get a friend to help with the measurement or fix a measuring tape to the wall and keep an eye on the numbers.

Make It an Experiment: You are well on your way to making an experiment if you make a prediction about whether temperature affects maximum balloon size and design a method to test the hypothesis. Can you propose an explanation for your results?

See If All Crayon Colors Melt at the Same Temperature

Crayons consist of wax, colorants, and sometimes fillers. See whether all crayons melt at the same temperature. You’ll need a bunch of different colors of crayons, a thermometer, and a way to melt them. Fortunately, wax melts at a lower temperature than water boils, so you can slowly heat water, watch for melting, and record the temperature. Another method is to place crayons (not-touching) on a sheet of wax paper on a cookie sheet, heat an oven to 350 ºF (or any temperature, really), and record which crayons melt first.

Make It an Experiment: Make predictions and answer questions. Do you get the same results with different brands of crayons? Do old crayons have the same melting point as new crayons? Watch for control variables , like the size of the crayons and whether you pre-heated the oven.

Make Lightning in Your Mouth

To make lightning in your mouth, crunch a Lifesaver Wint-O-Green or Pep-O-Mint candy in your mouth in front of a mirror in a dark room. Saliva can ruin the effect, so you might want to dry out your mouth with a paper towel first. The blue sparks that resemble lightning are due to an effect called triboluminescence . The sugar in the candy releases electrical energy when the crystals are compressed. The tiny charges attract nitrogen in the air, making miniature lightning bolts. Make It an Experiment: Get different types of hard candies and predict whether they will produce sparks in the dark. See if you can explain why some candies work better than others.

More 6th Grade Science Fair Project Ideas

Here are more ideas for projects to try:

• Test which brand of gum lasts the longest. Does it matter whether it contains sugar?
• What is the tallest tower you can build with 100 Legos?
• What is the fastest way to cool a soda?
• What metal is most resistant to corrosion by sea water?
• Does the shape of an ice cube affect how quickly it melts?
• Which soft drink sprays the most liquid after it is shaken?
• What type of sweetener do ants prefer?
• Does the color of a crayon affect how long of a line it will write?
• Do different types of knots affect the breaking strength of a rope?
• What type of air freshener makes a school bus smell best to the greatest number of students?
• How long does it take for milk to go “bad” refrigerated and unrefrigerated?
• Which apps run down a cell phone battery the fastest?

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6 experiments for fluid dynamics.

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Introduction

AP Physics 1 has added Unit 8: Fluids. This video and article will give you some timely tips on how to deliver this content.

The thing about teaching fluids in introductory physics is that there are three main principles: Pascal, Archimedes, and Bernoulli. Below we will outline six Fluid Physics Experiments – two for each – that will help you instruct on these important ideas.

Figure 1. Pascal’s Vases show us that pressure depends on depth and not area.

#1 The Definition of Pressure

Pascal gives us the definition of pressure, that P = F/A it is a force over an Area. Pressure is something that exists in a fluid, it is everywhere equal, at a given height. And, pressure, being a force causes acceleration. Fluids will flow from a place of high pressure to a place of low pressure, by Newton’s 2nd Law, it’s a net force. And because of area difference, it is possible to establish a mechanical advantage. Either using hydraulic pressure (liquids) or pneumatic pressure (gases).

Figure 2. A small syringe can have a mechanical advantage over a large one syringe because the pressure in the fluid, be it air or water, is constant throughout. P = F/A = F / A

But, pressure can also be measured by depth, Pascal explains this too. P = ρgh means that pressure doesn’t depend on area, only depth h and density ρ (usually constant), so we can use depth to predict pressure. Torricelli found the atmospheric pressure to be strong enough to lift Mercury to a height of 760 mm, and less so on the mountains. But if you use water, you can lift it to a height of 10 meters.

Figure 3. Torricelli’s experiment, the atmosphere can lift liquid mercury 760 mm, but no further. The space above is vacuum.

Figure 4. Depth increases the pressure in a fluid, this is explained by the formula P = ρgh. Where ρ is density. The manometer at right shows the pressure is higher than the atmosphere: the right end of the U-shaped tube is open for direct comparison.

Thus, if you were to dive 10 meters deep, you would experience an additional atmosphere of pressure (by ρgh) and you would definitely feel it. Because the ratio of 760mm to 10 meters is about 13 to 1, we conclude that mercury has a density that is 13 about times greater than water.

#2 The Concept of Fluid Density

If we are going to understand fluid physics - we need to use the MKS units of kilograms per meter cubed. I suggest a lab on these density cubes – which all have different masses - despite being the same size.

Figure 5. The density blocks can be a fun window into teaching the MKS units of kg/m3 that are used extensively in physics.

As a lab, try to measure their densities in the new units of kg/m3 which turns out to be 1000 times bigger than g/cm 3 . For example the density of water is 1000 kg / m 3 . In the lab, you can try to guess which block is which based on the density you measure and comparing to a chart.

Figure 6. The float test is one way to distinguish the blocks nylon (sinks) and polypropylene (floats) which otherwise look almost identical.

For a liquids example, comparing the density of salt water to regular water can be done easily with a density manometer. It helps to keep the waters cold so that they don’t mix quickly. The ratio is about 6 to 5 for fully saturated salt water (be sure to dye them different colors, and use salt without iodine). Thus, saturated salt water is 20% denser, or 1200 kg/ m 3 . The equilibrium statement of P = P becomes ρ 1 gh 1 = ρ 2 gh 2 .

Figure 7. Salt water (green) vs. Pure Acetone (pink) the density ratio is 3 to 2. The zero line is established at the height at which the substances meet. The green is just food dye but the pink is from a little nail polish. The salt must be pure and not iodized to get this high density of 1.2 g/mL.

My favorite demo with the density manometer is to compare saturated salt water to pure acetone… These two liquids will not mix and are -- easy to clean. I have added a little nail polish as a dye for the pure acetone. The ratio is a - quite large - 3 to 2, thus acetone has a density of only about .8 g/cm3 or 800 kg/ m 3 .

#3 Floating and Bouyancy

Archimedes Principle is that the weight of the displaced fluid is the same as the buoyant force. F = pVg But, this too is a consequence of pressure increasing with depth.

Figure 8. The pressure increase with depth is canceled out left and right, but not up and down. Thus, the net force from the water is Fnet = Fup – Fdown = P2*A – P1*A = ρgh2*A - ρgh1*A = ρgΔh*A = ρgV = Mg where M is the mass of the displaced fluid. which is the formula for buoyancy. (Recall that in fluids h means depth.) So, we see that buoyancy is really caused by depth pressure.

As we get deeper underwater the pressure increases, therefore the force is greater on the bottom than the top. These left and right side arrows cancel out. The result is that the pressure difference between the top and bottom, equal to ρgh, becomes a force equal to the volume of the object times the fluid density. Since density times volume is mass and with g weight, we easily see the weight of the fluid is equal to the net fluid force on the object, this is the buoyant force.

Figure 9. Pine floats about 50% below the surface of water and from that we immediately know its density is near .50 g/mL = 500 kg/m3 half that of water.

Floating objects of course are completely lifted by the fluid, so their buoyant force is the same as their weight. But not all objects float the same. Here, we see pine floats about halfway, while Styrofoam floats about 90% above the surface. Ice, famously is about 90% below, it depends if the water is fresh or salty.

Figure 10. Ice floats 92% below the surface, thus it has a density of .92 g/mL or 920 kg/ m 3 .

Generally, we can tell the density based on how well the object is floating. The % amount an object will sink is the same as its density, compared to water or the fluid it is in. As an example, ice sinks 92% in water, so its density is 92%. A styrofoam boat will sink more and more as I add passengers (washers) until it has the same density as water at which point it completely sinks.

Figure 11. As a lab, we will fill a Styrofoam boat with passengers until it completely sinks. Predicting this number is a good challenge and it usually works perfectly. The sinking moment occurs when the density of the boat matches the density of water.

#4 Boyle's Law:

Now the compressibility of gases is NOT tested in AP Physics 1 – only AP 2, so why is Boyle’s Law still an appropriate lab for AP Physics students?

Well , students probably already know gases are compressible from 8th grade physical science, and they are also important examples of fluids. But the compression of a gas under pressure is one of the surest metrics by which to gauge the pressure of a fluid.

Figure 12. The Elasticity of Gases Demo is a great way to get to know the formula for pressure and to make a measurement of the ambient atmospheric pressure.

When we add books to an Elasticity of Gases Demo we are demonstrating a familiarity with the formula for pressure: P = F/A. Each book provides a unit force of about 20 N and the syringe plunger's the area is constant at .0004 m2, thus, the pressure is increasing in 50,000 pascals (n/m2) with each book. A pascal is the unit of pressure and the atmosphere itself is measured by this experiment to be about 100,000 N/m2 of pressure. And that value is on the AP Physics test. Therefore, we conclude that yes, this is a great experiment on the physics of fluids.

#5 The Spouting Cylinder:

The spouting cylinder is a classic physics demonstration and a staple problem in AP Physics. Holes at different heights are permitted to emit water when subjected to fluid pressure. The question is, which spout will shoot the furthest? The lower spout has more pressure due to depth and so goes faster, but the upper spout has the height advantage.

The answer is to apply Torricelli’s theorem: ρgh = ½ ρv 2 which is a simpler version of Bernoulli’s Theorem. In short, the conservation of energy can be applied to fluids. Now that’s not how Torricelli said it, but this, combined with the laws of projectile motion, results in the maximum distance occurring always when the depth is equal to the height of the spout, or exactly right in the middle.

Figure 13. The Spouting Cylinder is a classic demonstration in AP Physics and demonstrates that the principles of projectile motion and conservation of energy can be applied to fluids.

#5 Bernoulli's Principal:

A fast-moving fluid is at a lower pressure, that is Bernoulli’s Principle, and it is somewhere here in the Bernoulli Equation:

P + ρgy + ½ ρv 2   = P + ρgy +   ½ ρv 2    

This principle explains the airplane lift force, because if there is a faster moving fluid over the curved wing it will generate a pressure difference between the top and bottom. Now, while you might not have an airplane at the ready, you do have a frisbee.

Figure 14. Airplane lift is explained by Bernoulli’s formula. When there is a greater velocity v, there is lower pressure P. This pressure reduction occurs on the top because the larger curve over the top compared to the bottom.

The frisbee displays a similar curving and obeys the same principle. So, explain that frisbees, when thrown through the air, are seen to float easily because they receive lift from the Bernoulli’s principle of fast-moving fluids.

The purpose of the spin, on the other hand, is that the frisbee will maintain a flat orientation so that the air is always lifting it up, always a lower pressure on top.

Figure 15. The frisbee is actually a great example of the Bernoulli Principle in effect. With a fluid streamline almost identical to that of the airplane wing.

So, play frisbee with your students. But, let us now ask, what if I were to glue two frisbees together in a macaroon shape and give that a throw. How would the range compare to two frisbees nested together.

Figure 16. The washers are taped to the yellow frisbee to match the mass of the double frisbee on the right. But this is optional not essential. The double frisbee loses either way.

The result, we can prove by experiment, is that a double frisbee will not have a lift advantage over a single frisbee, even when accounting for the weight increase. The added washers, which are taped in place, are optional and the experiments works well in either case and is quite convincing: a double frisbee will never go as far because it lacks the lift force to keep it aloft.

James Lincoln

Physics Instructor

James Lincoln is an experienced physics teacher with graduate degrees in education and applied physics. He has become known nationally as a physics education expert specializing in original demonstrations, the history of physics, and innovative hands-on instruction. The American Association of Physics Teachers and the Brown Foundation have funded his prior physics film series and SCAAPT's New Physics Teacher Workshops. Lincoln currently serves as the Chair of AAPT's Committee on Apparatus and has served as President of the Southern California Chapter of the AAPT, as a member of the California State Advisory for the Next Generation Science Standards, and as an AP Physics Exam Reader. He has also produced Videos Series for UCLA's Physics Demos Project, Arbor Scientific, eHow.com, About.com, and edX.org.

September 17, 2024 James Lincoln

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