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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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This science experiment tests if dog saliva can really help heal wounds.
Microbiology
Elementary School
Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.
Zoology
Third Grade
Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.
Anatomy
Fourth Grade
Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.
Zoology
Eighth Grade
This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.
Botany
Third Grade
Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.
Botany
Fifth Grade
This science fair project teaches students the differences between fruits and vegetables.
Food
Elementary School
In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.
Food
Second Grade

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