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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 science fair project idea explores substances that cause a bubble to last longer.
Chemistry
Third Grade
Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.
Elementary School
Physical Science
This science fair project idea produces varying pitches of sound.
Elementary School
Physical Science
Quench your thirst with great tasting lemonade while you explore the concepts of acid and base, and how these differ from sweet and sour.
Elementary School
Chemistry
Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?
Physics
Second Grade
Examine the effect of pressure on carbonation in soda.
Elementary School
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
Physics
How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.
Chemistry
Third Grade
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
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!
Physical Science
First Grade
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.
Physics
Fourth Grade
Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.
Chemistry
Second Grade

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