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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 determines which method of hand cleansing is the most effective.
Life Science
Elementary School
This project examines whether people's taste perception is influenced by what they see.
Psychology and Sociology
Elementary School
In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.
Psychology and Sociology
Middle School
In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.
Botany
Fourth Grade
This science fair project idea determines if family members can recognize one another using only the sense of smell.
Anatomy
Elementary School
4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.
Zoology
Fourth Grade
Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.
Botany
Third Grade
Learn how different types of soil affect how animal tracks form in this experiment!
Zoology
Kindergarten
This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.
Psychology and Sociology
Middle School
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
This science experiment tests if dog saliva can really help heal wounds.
Microbiology
Elementary School
In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.
Zoology
Kindergarten

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