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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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Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.
Seventh Grade
Eighth Grade
This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.
Fifth Grade
Easy
In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.
Third Grade
Earth & Space Science
Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.
Sixth Grade
Seventh Grade
Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.
Second Grade
Third Grade
The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.
Middle School
Botany
How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.
Fourth Grade
Ecology
This science fair project idea examines  whether people can decode scrambled messages.
Middle School
Psychology and Sociology
Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.
Sixth Grade
Easy

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