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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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Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Fourth Grade
Weather and Climate
Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.
Fifth Grade
Easy
In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!
Elementary School
Fourth Grade
This science fair project idea enhances awareness of local food production and food sourcing.
Elementary School
Middle School
This science fair project idea determines the most effective method of preserving food.
Elementary School
Fourth Grade
Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.
Ninth Grade
Tenth Grade
Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!
Third Grade
Astronomy
Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.
Elementary School
Fourth Grade

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