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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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Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.
Physical Science
Third Grade
This science fair project creates a visual model of whatâs happening to  sound waves as a car approaches and then leaves.
Physics
Fourth Grade
Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.
Physics
Fourth Grade
This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.
Physics
Second Grade
The purpose of this science fair project is to build a basic radio.
Elementary School
Electricity and Magnetism
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!
Chemistry
Fourth Grade
This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.
Elementary School
Chemistry
Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.
Chemistry
Fourth Grade

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