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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.
Health and Medicine
Middle School
Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.
Weather and Climate
Fourth Grade
This experiment evaluates whether the phenomenon of 'choice blindness' occurs more often with men or women.
Behavioral/Health Science
High School
Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.
Weather and Climate
Third Grade
This project explores if people more easily distinguish between faces of people of their own race or ethnicity compared to those of other races or ethnicities.
Behavioral/Health Science
High School
Do people only 'hear' what they want to hear? Explore pareidolia and psychoacoustics  with this easy science fair project that pits melody against white noise.
Psychology and Sociology
Eighth Grade
In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.
Weather and Climate
Fifth Grade
This science fair project idea is develops new or improved paper making techniques and encourages recycling.
Consumer Science
Elementary School
In this science fair project, students make their own rain gauge to measure rainfall.
Weather and Climate
Fourth Grade
This science fair project idea discovers the average time it takes for a person to remember something completely.
Psychology and Sociology
Middle School
We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.
Behavioral/Health Science
High School
Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.
Food
Third Grade

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