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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 198
In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!
Engineering
Fifth Grade
In this CD hovercraft science project, students will construct their own DIY hovercraft.
Engineering
Fourth Grade
This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.
Engineering
Elementary School
Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.
Engineering
Second Grade
Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.
Engineering
Eighth Grade
In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.
Engineering
Fifth Grade
In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.
Weather and Climate
Fifth Grade
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Engineering
Elementary School
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.
Engineering
Fifth 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
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 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
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

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