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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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Little ones looking to get their hands dirty will love this series of fun plant experiments for kids that teach essential plant biology concepts such as photosynthesis, transpiration, capillary action, and tropisms in fun and hands-on ways. Little green thumbs get to do everything from literally cloning cabbage (which is actually quite easy to do, and very cool) to building their own working greenhouses. Check it out!
Science Fair Project Ideas
Chemistry
The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.
Elementary School
Botany
Test whether plants can grow without sunlight and water.
Elementary School
Second Grade
This science fair project examines the different composition of fungi and plants.
High School
Ninth Grade
This science fair project explores how osmotic pressure forces water through the root up into the plant.
Elementary School
Third Grade

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