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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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This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.
Physical Science
Elementary School
This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.
Chemistry
Second Grade
This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.
Physics
Elementary School
This science fair project idea explores substances that cause a bubble to last longer.
Chemistry
Third Grade
Demonstrate the principle of jet propulsion in this science fair project by building a rocket from household materials.
Physics
Middle School
Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.
Physical Science
Elementary School
This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.
Physical Science
Elementary School
This science fair project uses paper chromatography to  investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.
Physical Science
Chemistry
This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.
Electricity and Magnetism
First Grade
This science fair project idea builds models of various types of bridges and then  determines which bridge design is the strongest.
Physics
Fifth Grade
This experiment examines if space objects become round after reaching a certain mass.
Physics
High School

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