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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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Check out this fun high school science fair project idea to identify features of a mushroom and learn how do humans use fungi to their benefit?
Ninth Grade
Easy
Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.
High School
Medium
Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.
Fourth Grade
Fifth Grade
This science fair project idea examines eye color genetics and the role it plays in eye color inheritance.
Tenth Grade
Medium
Time to look at our faces! Are they symmetrical or asymmetrical? Find out in this science fair project idea.
Sixth Grade
Seventh Grade
Science fair project that determines whether algae can be made to grow by feeding it supplementary carbon dioxide.
Sixth Grade
Seventh Grade
This science fair project explores different types of endangered frogs, and why some are endangered while others are not.
Ninth Grade
Hard
Science fair project that examines the biodiversity of ant populations in various locations.
Ninth Grade
Tenth Grade
Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?
Sixth Grade
Seventh Grade

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