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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Take a dive into the candy jar with this yummy science experiment.
Fourth Grade
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Third Grade
This science fair project idea produces varying pitches of sound.
Physical Science
Elementary School
With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!
Physical Science
First Grade
Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.
Eighth Grade
How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!
Physical Science
Fourth Grade
The objective of this science fair project idea is to  determine if sound travels best through the air, water or a solid.
Elementary School

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