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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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Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.
Ninth Grade
Tenth Grade
In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!
Third Grade
Astronomy
High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.
Ninth Grade
Physics
This project examines whether people's taste perception is influenced by what they see.
Third Grade
Elementary School
Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.
Third Grade
Second Grade
How does frost form?  How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.
Third Grade
Easy
Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.
Third Grade
Easy
Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.
Third Grade
Medium
Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.
Third Grade
Easy

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