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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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Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.
Fifth Grade
Sixth Grade
How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.
Third Grade
Easy
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.
First Grade
Easy
What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.
Third Grade
Anatomy
Do you think you could walk around upside down -- with your feet in the air and your head on the ground?
Second Grade
Botany
In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.
Second Grade
Medium
Take a dive into the candy jar with this yummy science experiment.
Fourth Grade
Chemistry
The objective of this science fair project idea is to  determine if sound travels best through the air, water or a solid.
Elementary School
Fourth Grade
In this project, different childproof containers are tested to see how childproof they really are.
Elementary School
Fifth Grade
This science fair project idea teaches kids the different functions of a leaf.
Elementary School
Botany
What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.
Second Grade
Botany

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