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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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Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.
Chemistry
Second Grade
Science fair project that models the effect of global warming on the ocean's circulation.
Physical Science
Middle School
This science fair project examines whether ocean water can be made safe to drink.
Chemistry
Middle School
In this free science fair project idea, we learn about how buoyancy keeps boats from sinking in the water.
Physics
Middle School
In this free science fair project idea, we learn about how static fluids exert force on their environment.
Physics
Middle School
In this free science fair project idea, we learn about buoyancy and how liquids push objects upward.
Physics
Middle School
In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.
Chemistry
Third Grade
In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.
Physics
Fifth Grade
The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.
Physics
Sixth Grade

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