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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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Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.
Life Science
Fifth Grade
This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.
Elementary School
Life Science
Do you think you could walk around upside down -- with your feet in the air and your head on the ground?
Botany
Second Grade
Enter the buzz worthy world of bee watching and find out what time bees like to wake up!
Zoology
Third Grade
Looking for a way to liven up a hot summer day? A little hands-on science is the perfect way to keep your kid occupied. So why not recruit your budding scientist and conduct an experiment or two?
Elementary School
Life Science
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.
Anatomy
Third Grade
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.
Microbiology
Second Grade
Test your friends to find out if you can replicate the placebo effect's incredible results.
Anatomy
Second Grade
Discover flight initiation distance as you play around in the park with this fun bird watching project!
Zoology
Third Grade
Can you fool your eyes and your brain with an optical illusion?  The purpose of this science fair project is to demonstrate various kinds of optical illusions.
Elementary School
Anatomy

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