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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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Showing 1 to 15 of 443
Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.
Chemistry
First Grade
In this CD hovercraft science project, students will construct their own DIY hovercraft.
Engineering
Fourth Grade
This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.
Engineering
Elementary School
This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.
Chemistry
Elementary School
Check out 10 of our favorite chemistry experiments for kids. Little mad scientists can learn about endothermic and exothermic reactions, electrolysis, oxidation, and combustion with easy experimental procedures that enlighten young minds while minimizing the need for specialized equipment.
Chemistry
Science Fair Project Ideas
Little ones looking to get their hands dirty will love this series of fun plant experiments for kids that teach essential plant biology concepts such as photosynthesis, transpiration, capillary action, and tropisms in fun and hands-on ways. Little green thumbs get to do everything from literally cloning cabbage (which is actually quite easy to do, and very cool) to building their own working greenhouses. Check it out!
Chemistry
Science Fair Project Ideas
Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.
Chemistry
Seventh Grade
Discover how and which salt melts ice the quickest.
Chemistry
Elementary School
It's easy to do science in the kitchen with these fantastic food experiments for kids. Little gastronomers will observe the enzymatic activity of pineapple, quantify the amount of grease in potato chips, and discover effective ways to inhibit (or encourage!) mold growth on bread with this series of fun and enriching science fair projects. Bon Apptit!
Chemistry
Science Fair Project Ideas
In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.
Engineering
Fifth Grade
In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.
Chemistry
Sixth Grade
In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.
Chemistry
Fourth Grade

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