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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 what a comet looks like.
Elementary School
Astronomy
How does hail form and what does it look like? In this free science fair project ideas, you'll learn how to create ice pellets that resemble hail.
Elementary School
Earth & Space Science
How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.
Third Grade
Easy
Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?
Third Grade
Fourth Grade
What causes wind? What causes the wind direction? Do this free science fair project and explore how wind move and what cause it. Project for elementary kids.
Elementary School
Earth & Space Science
Check out this cool science fair project idea to explore how plants adapt themselves to their environment in cold Arctic tundra regions.
Middle School
Medium
Check out this fun science fair project idea to explore the temperate grassland called prairies and find the reasons for the loss of the great prairies.
Middle School
Medium
Elementary School
Weather and Climate
Get a cool science fair project idea on various climatic seasons and find out the reasons why summer has the hottest and longest days.
Elementary School
Weather and Climate

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