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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 221
What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!
Weather and Climate
Fourth Grade
Kids often ask, 'how tall am I?' This science fair project seeks to determine how well kids can guess their own heights.
Psychology and Sociology
First Grade
What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.
Weather and Climate
Fourth Grade
This science fair project tests test whether the presence of spell check has changed standards for spelling.
Psychology and Sociology
Elementary School
Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!
Psychology and Sociology
Eighth Grade
In this science fair project, students make their own rain gauge to measure rainfall.
Weather and Climate
Fourth Grade
What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.
Weather and Climate
Ninth Grade
Do people only 'hear' what they want to hear? Explore pareidolia and psychoacoustics  with this easy science fair project that pits melody against white noise.
Psychology and Sociology
Eighth Grade
Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.
Weather and Climate
Fourth Grade
Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.
Weather and Climate
Third Grade
How does frost form?  How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.
Weather and Climate
Third Grade
Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Weather and Climate
Fourth Grade
Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.
Psychology and Sociology
Eighth Grade

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