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,’s physical science section is a fantastic free resource.

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This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.
Middle School
This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.
Elementary School
This science fair project idea determines what household items are good conductors of electricity.
Electricity and Magnetism
Third Grade
Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.
Middle School
This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.
Physical Science
Elementary School
In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.
Fifth Grade
Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.
Eighth Grade

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