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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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In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.
Fourth Grade
Geology
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.
Fifth Grade
Engineering
In this CD hovercraft science project, students will construct their own DIY hovercraft.
Fourth Grade
Physics
In this science fair project, students create their own miniature salt flats at home.
Fourth Grade
Fifth Grade
Check out this cool and free middle school science fair project idea on how to make a solar oven.
Seventh Grade
Easy
In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.
Fourth Grade
Easy

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