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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!
Botany
Science Fair Project Ideas
How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!
Electricity and Magnetism
Fifth Grade
This science fair project examines how seeds hitchhike on animals and clothing.
Botany
Elementary School
This project explores whether plants can live and grow when 'watered' with juice, soda, or milk.
Life Science
Botany
This experiment investigates if stress alters body temperature.
Life Science
Middle School
This science fair project idea determines if family members can recognize one another using only the sense of smell.
Anatomy
Elementary School
In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.
Botany
Sixth Grade
For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.
Electricity and Magnetism
Botany
Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.
Microbiology
Sixth Grade
What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!
Botany
Fifth Grade

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