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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 fair project idea enhances awareness of local food production and food sourcing.
Elementary School
Middle School
This science experiment tests if dog saliva can really help heal wounds.
Elementary School
Fourth Grade
In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.
Sixth Grade
Electricity and Magnetism
Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.
Third Grade
Easy
Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.
Fourth Grade
Easy
Let's begin digging in your backyard. This free science fair project outlines all the materials and guides you need to become an archaeologist.
Middle School
Easy
What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.
Fifth Grade
Physics

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