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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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Marshmallows are made of sugar, water, and air pockets.  Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?
Elementary School
Third Grade
Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.
Second Grade
Medium
This biodiversity project examines the biodiversity in your own backyard.
Third Grade
Medium
Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?
Third Grade
Geology
Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.
Second Grade
Earth & Space Science
What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!
Fourth Grade
Chemistry
This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.
Elementary School
Fourth Grade
What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.
Fifth Grade
Medium
The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!
Third Grade
Astronomy

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