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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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Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.
Fourth Grade
Fifth Grade
Science fair project that examines the physical characteristics of soil in order to learn about soil permeability and other environmental properties.
Fifth Grade
Sixth Grade
This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.
Third Grade
Medium
Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.
Fifth Grade
Sixth Grade
This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.
Elementary School
Fifth Grade
Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.
Middle School
High School
Science fair project that determines which types of clouds are best at blocking harmful UV radiation.
Sixth Grade
Seventh Grade
Science fair project that examines whether different types of algae produce the same amount of oil by comparing the surface beading of water droplets.
Sixth Grade
Seventh Grade
This science project examines the thermal properties of several major greenhouse gases.
High School
Earth & Space Science
This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.
Fifth Grade
Middle School
Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?
Seventh Grade
Eighth Grade
Is your kid crazy about science? Check out this selection of advanced science projects that revolve around the sun.
High School
Science Fair Project Ideas
Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.
Seventh Grade
Eighth Grade

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