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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 61 to 75 of 102
In this free science fair project idea, we replicate how a meteorite would impact a planet.
Weather and Climate
Elementary School
In this free science fair project idea, we learn about how friction in the atmosphere causes meteors to become hot.
Weather and Climate
Elementary School
In this free science fair project idea, we model what a comet looks like.
Weather and Climate
Elementary School
Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.
Weather and Climate
Fifth Grade
How does hail form and what does it look like? In this free science fair project ideas, you'll learn how to create ice pellets that resemble hail.
Weather and Climate
Elementary School
The goal of this evaporation experiment is to learn about how different external conditions affect drying time.
Weather and Climate
Second Grade
Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?
Weather and Climate
Third Grade
How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.
Weather and Climate
Third Grade
How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.
Weather and Climate
Second Grade
This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.
Genetics
Seventh Grade
When there are dark clouds, rain is expected but how do raindrops begin? Do this free science fair project and explore the formation of raindrops.
Weather and Climate
Elementary School
Study and categorize the functions and types of genes. Run gene experiments  chosen from links. Analyze data, explain ideas in a detailed report.
Genetics
High School
How does cloud form and what causes its formation? Do this free science fair project and see how and why clouds form.  Great project for elementary students.
Weather and Climate
Elementary School

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