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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 idea explores the fastest average speed a human can talk.
Middle School
High School
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
Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.
First Grade
Easy
What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.
Fifth Grade
Physics
Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.
Fourth Grade
Botany
This science fair project idea uses the process of chemical weathering to change a mineral.
Elementary School
Easy
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Elementary School
Fourth Grade
Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!
Fourth Grade
Zoology

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