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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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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
Science fair project that examines whether different types of algae produce the same amount of oil by comparing the surface beading of water droplets.
Physical Science
Sixth Grade
Science fair project which determines whether the depth of a boat in the water changes how fast it moves and how straight it sails.
Physics
Fifth Grade
Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.
Physical Science
Middle School
This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.
Physical Science
Third Grade
The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.
Physics
Ninth Grade
In this free science fair project idea, we learn about fronts and how they move about and affect the weather.
Physics
Middle School
What color do you get when you mix red and green colors? It could be yellow or brown depending on the process.  Do the free science fair project to find out.
Physics
Physical Science
A hydrometer is an instrument used to compare the density (mass per unit volume) of a liquid substance to the density of pure water. Learn how to make one!
Chemistry
Middle School

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