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Elementary School Science Fair Project Ideas

Education.com's elementary school science fair projects expose kids to a broad range of opportunities for scientific inquiry, arming them with the tools and knowledge they need to answer their questions about the world around them. Elementary school science experiments are a great way to demonstrate important concepts in physics and chemistry, while our elementary school science fair project ideas equip kids with carefully explained procedures that yield enlightening results.

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This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!
Physics
Third Grade
Will the shape of an ice cube impact how fast the ice melts?
Physics
Fifth Grade
Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.
Physics
Fifth Grade
Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.
Physics
Second Grade
With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.
Physics
Fourth Grade
Future engineers, unite! Discover how to keep a sandcastle√Ęs bridge from falling
into the moat.
Physics
Fourth Grade
This science fair project idea determines if the temperature of rubber effects how high it bounces.
Elementary School
Physics
Learn about this simple machine and make a pulley of your own to use for fun science trials.
Physics
Second Grade
Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.
Elementary School
Physics

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