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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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Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.
Earth & Space Science
Ecology
In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.
Geology
Fourth Grade
In this science fair project, students use the streak test to tell minerals apart from each other.
Elementary School
Earth & Space Science
In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.
Astronomy
Fifth Grade
Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.
Ecology
Third Grade
Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.
Weather and Climate
Second Grade
Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.
Environmental Issues
Fifth Grade
Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.
Astronomy
Fifth Grade
Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Weather and Climate
Fourth Grade
How does frost form?  How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.
Weather and Climate
Third Grade
Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.
Earth & Space Science
Weather and Climate

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