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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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Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.
Physical Science
Third Grade
Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.
Chemistry
Second 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
Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.
Chemistry
Seventh Grade
Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.
Chemistry
First Grade
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

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