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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 fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.
Elementary School
Middle School
In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!
Elementary School
Fourth Grade
Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.
Second Grade
Geology
Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.
Fifth Grade
Engineering
Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.
Second Grade
Engineering
This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.
Elementary School
Fourth Grade
Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.
Fourth Grade
Easy
What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.
Third Grade
Anatomy
How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!
Fifth Grade
Electricity and Magnetism
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Elementary School
Fourth Grade
Discover how and which salt melts ice the quickest.
Elementary School
Fourth Grade
In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.
Fourth Grade
Easy

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