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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 665
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.
Ecology
Fourth Grade
This project examines whether people who are frequent users of Facebook feel less or more lonely than infrequent Facebook-users.
Psychology and Sociology
Middle School
Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.
Ecology
Third Grade
In this science fair project, students make their own rain gauge to measure rainfall.
Weather and Climate
Fourth Grade
Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.
Ecology
Fourth Grade
Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.
Geology
Weather and Climate
Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.
Astronomy
Eighth Grade
How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.
Ecology
Sixth Grade
Check out this cool science fair project on identifying rocks and minerals for kids.
Earth & Space Science
Geology
This science fair project idea enhances awareness of local food production and food sourcing.
Ecology
Elementary School
Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.
Ecology
Elementary School
This project examines the common belief that with increasing age, people are less willing to adopt new technology.
Psychology and Sociology
Fourth Grade

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