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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 project explores whether plants can live and grow when 'watered' with juice, soda, or milk.
Life Science
Botany
Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.
Botany
Fourth Grade
4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.
Zoology
Fourth Grade
Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.
Zoology
Third Grade
Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.
Zoology
Fourth Grade
Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.
Engineering
Fifth Grade
Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!
Zoology
Fourth Grade
Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!
Botany
Fourth Grade
This science experiment tests if dog saliva can really help heal wounds.
Microbiology
Elementary School

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