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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 531
For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.
Botany
Second Grade
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.
Botany
Fifth Grade
This science fair project examines how seeds hitchhike on animals and clothing.
Botany
Elementary School
Are there really specific taste areas of the tongue for sweet, salty, bitter, sour, and umami? Find out for yourself in this cool science project.
Anatomy
Fourth Grade
Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.
Botany
Kindergarten
In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.
Botany
Sixth Grade
In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.
Zoology
Kindergarten
This science fair project idea determines which method of hand cleansing is the most effective.
Life Science
Elementary School
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.
Botany
Fourth Grade
Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.
Zoology
Eighth Grade

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