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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 1 to 15 of 1,020
Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.
Physical Science
Third Grade
Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?
Aerodynamics
Fifth Grade
This science fair project idea determines if family members can recognize one another using only the sense of smell.
Forensic Science
Elementary School
This science fair project idea explores the fastest average speed a human can talk.
Physical Science
Middle School
In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.
Physics
Fourth Grade
Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.
Chemistry
Second Grade
Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Aerodynamics
Fourth Grade
How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!
Chemistry
Middle School
In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.
Chemistry
Fourth Grade
Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?
Chemistry
Ninth Grade
Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!
Physics
Ninth Grade
High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.
Electricity and Magnetism
Tenth Grade

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