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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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Is temperature a requirement for solar energy uses? This project tests this theory and examines the amount of usable sunlight for solar-energy applications.
Physics
Middle School
With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.
Physics
First Grade
Looking for a way to keep your kid busy during the long, hot days of summer? These science projects will spark your young learner's curiosity going into the new school year. What's more, conducting an experiment or two is a great way to take your mind off the sweltering temperatures!
Physical Science
Elementary School
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Chemistry
Third Grade
This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.
Chemistry
Elementary School
How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.
Physics
Second Grade
A compass is a useful navigational instrument for determining direction relative to the Earth's magnetic poles. Learn how to use one in this science project!
Physics
Elementary School
In this experiment we use Scotch Guard to make sand that resists water.
Physical Science
Middle School
Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.
Physical Science
Elementary School
Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.
Physical Science
Elementary School
Since water has weight, it exerts pressure. In this science fair project, you will learn to determine a way to measure water pressure.
Physics
Middle School

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