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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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Showing 31 to 45 of 150
This experiment will explore if a randomly iterated algorithm will result in a pattern.
High School
Physics
This experiment examines if space objects become round after reaching a certain mass.
High School
Physics
Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Physics
Middle School
This experiment will examine and precisely measure the amount of sugar in various sodas.
High School
Physics
This free science fair project idea shows you how parallax decreases as distance from the object increases.
High School
Physics
This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.
High School
Physics
This science fair project idea explores what common compounds can be easily separated out in a centrifuge.
High School
Physics

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