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 experiment will explore if a randomly iterated algorithm will result in a pattern.
High School
The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.
Physical Science
Seventh Grade
Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector
Physical Science
Sixth Grade
The project investigates how water and movement affects erosion.
Physical Science
Second Grade
Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.
Sixth Grade
Science fair project in which you will start a fire from scratch without using matches or a lighter.
Fifth Grade
This science fair project idea will be examining oxidation and acid rain
Physical Science
Middle School
In this project, the affect of acid rain is simulated by the acid, vinegar.
Third Grade

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