High School Science Fair Projects

Need a science fair project that's fun, engaging, and appropriately rigorous for a high school science fair? 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 demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.
Eighth Grade
Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.
Seventh Grade
Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.
High School
The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.
Ninth Grade

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