Science Fair Project Ideas 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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Elasticity is the ability of a material to return to its original shape after being stretched. In this science project, determine how elastic a gummy worm is!
Middle School
This science fair project idea outlines the principles and techniques behind paper batteries.
High School
This science fair project idea examines which type of insulation holds in the most heat.
Elementary School
Third Grade
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
Check out this simple science fair project idea for middle and high school students on Ohm's law which relates to voltage, current and resistance of a circuit.
Middle School
High School

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