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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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Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.
Health and Medicine
Fifth Grade
Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!
Health and Medicine
Psychology and Sociology
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Physics
Elementary School
This experiment evaluates if personality affects the type of movies that people prefer.
Behavioral/Health Science
High School
Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.
Chemistry
Fourth Grade
Certain fruits can change gelatin√Ęs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.
Food
Chemistry
In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.
Physics
Fifth Grade
This science experiment tests if dog saliva can really help heal wounds.
Health and Medicine
Elementary School
This science fair project idea determines if family members can recognize one another using only the sense of smell.
Forensic Science
Elementary School

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