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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 31 to 45 of 196
Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.
Engineering
Fifth 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.
Weather and Climate
Fifth Grade
Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.
Engineering
Second Grade
Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.
Weather and Climate
Fifth Grade
In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!
Engineering
Fifth Grade
Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.
Weather and Climate
Seventh Grade
Figure out which fruit has the most vitamin C (ascorbic acid) in this fun science project!
Applied Mathematics
Sixth Grade
Science fair project that designs a video game that requires players to use relevant skills.
Computers
Middle School
The purpose of this project is to examine the sun's highest altitude in the sky during the day to determine if it is exactly halfway between sunrise and sunset.
Applied Mathematics
Middle School
Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!
Engineering
Third Grade
Analyze temperature and precipitation data to determine whether current weather conditions are outside the historical norm.
Weather and Climate
Middle School

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