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Physical Science Projects & Project Ideas

Our team of professional scientists, science teachers and educational consultants has put together an excellent collection of free physical science projects for kids. These include physics science fair projects, science experiments, and demonstrations that help kids explore the world of classical mechanics, as well as other great physical science topics: our hair-raising magnet and electricity experiments are sure to spark your child's scientific curiosity. Whether you’re looking for science fair project ideas for your child’s upcoming science fair or your little one simply loves conducting physical science experiments, Education.com’s physical science section is a fantastic free resource.

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This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.
Physical Science
Fifth Grade
Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.
Chemistry
Eighth Grade
This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!
Physics
Third Grade
Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!
Chemistry
Second Grade
What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.
Physics
Fourth Grade
This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.
Physical Science
Chemistry
This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.
Physical Science
Chemistry
This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.
Physical Science
Physics
This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.
Physical Science
Physics
How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.
Chemistry
Ninth Grade

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