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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 high school science fair project investigates if small changes in your diet alter the pH of your saliva.
High School
Life Science
This science fair project examines the different composition of fungi and plants.
High School
Ninth Grade
This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.
High School
Elementary School
Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.
High School
Middle School
Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.
Ninth Grade
Physics
Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.
Seventh Grade
Eighth Grade
In this experiment, you will be making your own paper flashlight by conducting electricty with graphite.
Seventh Grade
Eighth Grade
Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Middle School
Seventh Grade
This experiment will explore whether fractals really repeat themselves infinitely.
High School
Applied Mathematics
Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.
Seventh Grade
Eighth Grade

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