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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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In this fun science fair project idea get info on hibernation and explore how animals survive extreme weathers by adapting to seasonal climate changes.
Elementary School
Easy
This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.
Elementary School
Second Grade
This experiment will explore if a randomly iterated algorithm will result in a pattern.
High School
Physics
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
Is temperature a requirement for solar energy uses? This project tests this theory and examines the amount of usable sunlight for solar-energy applications.
Middle School
High School
Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Middle School
Seventh Grade
In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.
Fifth Grade
Physics
Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?
Second Grade
Physics
Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.
Second Grade
Physics
In this science fair project, you will learn the differences between coarse-, medium-, and fine-textured soils.
Middle School
High School

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