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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Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!
Physical Science
Fifth Grade
In this free science fair project, learn what and how to identify carbonates.  Use for free more science fair project ideas!
Elementary School
Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.
Physical Science
Seventh Grade
Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.
Physical Science
Sixth Grade
Science fair project which conducts a formal scientific investigation to evaluate different methods of melting roadway ice.
Physical Science
Sixth Grade
Science fair project that measures the number of Calories in algae obtained from different environments to compare the amount of oil present in each sample.
Physical Science
Sixth Grade

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