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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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This science fair project idea determines whether plants grow better in soil or in fish ponds.
High School
Life Science
In this science fair project, you will examine the functions of different food minerals and their effect on the human body.
High School
Life Science
Select a study area that has a variety of plant life and learn about its ecosystem in this science fair project.
High School
Life Science
Learn how healthy potted tomato plants can mature and bear fruit in a hydroponic environment! Use Education.com for free science fair project ideas.
High School
Botany
This science research project challenges students to think of more effective lobster farming methods.
High School
Zoology
Learn how to test for the production of carbon dioxide by respiration in plants with this science fair project.
High School
Botany
Learn about plant growth with this science fair project using a pinto bean plant! Use Education.com for science fair project ideas.
High School
Botany

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