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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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What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.
Physics
Fifth Grade
Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.
Electricity and Magnetism
Sixth Grade
Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.
Physics
Fifth Grade
For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.
Electricity and Magnetism
Second Grade
Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Aerodynamics
Fourth Grade
Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.
Chemistry
Middle School
How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!
Chemistry
Middle School

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