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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 91 to 105 of 468
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
In this free science fair project idea, we demonstrate and analyze the effects of erosion on crustal material.
Middle School
Earth & Space Science
In this free science fair project idea, we learn about the Greenhouse Effect and how it keeps us warm on a global scale.
Middle School
Earth & Space Science
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
In this free science fair project idea, we learn the differences between coarse, medium and fine-textured soil.
Middle School
Earth & Space Science
This science project examines the thermal properties of several major greenhouse gases.
High School
Earth & Space Science
In this free science fair project idea, we learn about terminal velocity and how and at what point it is attained.
Middle School
Physics
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
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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