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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Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.
Physical Science
Seventh Grade
The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.
Tenth Grade
Discover whether people can distinguish what a person looks like just by listening to their voice.
Physical Science
Seventh Grade
Find out if most people can distinguish the difference between tones on different instruments.
Physical Science
Seventh Grade
The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.
Physical Science
First Grade
Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.
This science fair project investigates which type of light bulbs are the best at producing flattering photographs in both flash and non-flash conditions.
Electricity and Magnetism
Middle School
The goal of the project is to evaluate whether land or water warms more quickly when subjected to increased temperature.
Elementary School
The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.
Fifth Grade

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