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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 examines the different composition of fungi and plants.
High School
Ninth Grade
In this science fair experiment, high school students determine if all proteins denature at the same temperature.
High School
Ninth Grade
In this science fair project, students evaluate if astrological signs provide clues about people's personalities.
High School
Ninth Grade
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 idea lets you build your own wind tunnel and tests different models of paper airplane.
High School
Middle School
Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.
Sixth Grade
Seventh Grade
This social science experiment assesses whether the timing of peak mental performance shifts from afternoon to morning as we age.
High School
Ninth Grade
The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.
High School
Middle School
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

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