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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 free science fair project idea, we model sidereal time and solar time and learn about the difference between these two timekeeping systems
Middle School
Earth & Space Science
In this free science fair project idea, we learn about how insulators preserve heat and warmth by preventing energy transfer.
Middle School
Chemistry
In this free science fair project idea, we learn how constructive interference can make colors appear in a substance with a thin film of a separate substance.
Middle School
Physics
In this free science fair project idea, we learn the differences between coarse, medium and fine-textured soil.
Middle School
Earth & Space Science
In this free science fair project, explore whether or not solid rock will melt at high temperature.  Use Education.com for more science fair project ideas!
Elementary School
Geology
In this free science fair project, explore the sky globe by modeling the motion of the celestial sphere. Use Education.com for more free science projects!
Middle School
Astronomy

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