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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!
Third Grade
Easy
Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!
Second Grade
Life Science
Play with balance and simple engineering as you hurry to create a sturdy rock tower.
Second Grade
Engineering
With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!
First Grade
Physical Science
This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.
Fifth Grade
Easy
What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.
Fourth Grade
Physics
Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.
Second Grade
Chemistry
Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.
Fourth Grade
Microbiology
This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.
Elementary School
Second Grade

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