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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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This science fair project challenges students to research and interact with the animals and plants that live in tide pools and test a practical use of tidepools
Middle School
High School
Science fair project that explores the natural process of limestone formation.
Middle School
Easy
Science fair project that examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.
Fifth Grade
Sixth Grade
What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!
Fifth Grade
Easy
Middle School
Oceans
In this free science fair project idea, we learn about how plate tectonics can shift plates beneath our very feet.
Middle School
Earth & Space Science
In this free science fair project idea, we learn about how buoyancy keeps boats from sinking in the water.
Middle School
Medium
Raise fish in different sized aquariums for 8 weeks. Document growth rate. Determine optimal volume for fish growth.
Middle School
Medium

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