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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
Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.
Sixth Grade
Seventh Grade
The objective of this project is to examine the impact of life experiences upon an individual's olfactory experience.
High School
Psychology and Sociology
In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.
Ninth Grade
Psychology and Sociology
What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.
Tenth 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
Research is dependent upon the idea that sample sizes are generally representative of a population...but is this true? Test the assumption with M&Ms!
High School
Middle School
In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.
High School
Applied Science
In this science fair project, students evaluate the alleged pain-relieving properties of amber.
Middle School
Seventh Grade
Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.
Seventh Grade
Eighth Grade
Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.
Eighth Grade
Ninth Grade

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