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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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Showing 1 to 15 of 42
Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.
Fifth Grade
Easy
Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.
High School
Hard
In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.
Elementary School
Fourth Grade
Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.
Fifth Grade
Engineering
Do you hate to waste energy? In this experiment you will design a mechanical device that is powered bythe process known as energy transformation.
High School
Hard
Can airplanes fly underwater? Do this free science fair project, explore this question and the mechanics and physics of hydrodynamics.
Middle School
Easy
Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.
Middle School
Hard
Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.
Middle School
Hard

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