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High School Science Fair Projects

Need a science fair project that's fun, engaging, and appropriately rigorous for a high school science fair? Education.com has assembled a rich collection of high school science fair projects and high school science fair project ideas written by our team of professional scientists, science teachers, and educational consultants. We offer free high school science experiments on every science fair topic, including physics, chemistry, biology, engineering, and even psychology. Check the boxes in the sidebar to filter your results, or use the search bar to find a winning idea for your upcoming science fair. Hundreds of good science fair projects are only a click away.

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Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.
Chemistry
Eighth Grade
How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.
Chemistry
Ninth Grade
Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Physics
Middle School
This experiment will explore if a randomly iterated algorithm will result in a pattern.
High School
Physics
Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.
Physical Science
Tenth Grade
Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.
High School
Chemistry
Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.
High School
Chemistry

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