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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 fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.
Elementary School
Fourth Grade
This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.
Elementary School
Middle School
This science fair project idea examines which type of insulation holds in the most heat.
Elementary School
Third Grade
Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.
Elementary School
Fifth Grade
Generate gas from garbage. The purpose of this science fair project is to simulate how landfills generate gases that can be used to create energy.
Middle School
High School
Get a cool physics science fair project idea for advance middle school and high school students on measuring the Earth's magnetic field.
Middle School
High School
Learn how milk freezes into ice cream. Does the fat content affect how quickly the milk freezes? What is salt's role in the freezing process?
Elementary School
Chemistry
Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.
Elementary School
Fifth Grade

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