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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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Showing 16 to 30 of 79
Science fair project that uses distillation to convert salt water into fresh water.
Chemistry
Seventh Grade
Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.
High School
Chemistry
This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.
High School
Chemistry
Test the combustion of different types of woods.
High School
Chemistry
Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.
High School
Chemistry
Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.
Chemistry
Eighth Grade
This experiment will examine and precisely measure the amount of sugar in various sodas.
High School
Chemistry
The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.
High School
Chemistry
This science fair project examines whether ocean water can be made safe to drink.
High School
Chemistry
Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.
High School
Chemistry
Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.
Chemistry
Sixth Grade

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