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Earth and Space Science Fair Projects

Looking for science fair project ideas that will make your kid a star at his upcoming science fair? Education.com's editorial staff has curated a rich collection of cool Earth and space science fair projects written by our team of talented professional scientists, science teachers, and educational consultants. Our Earth science projects and Earth science experiments give inquisitive kids the opportunity to identify unknown minerals and discover why certain volcanic rocks can float. Our space science projects give students the chance to do everything from building a model rocket to determining the elliptical path of a planet's orbit using applied math.

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Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.
Environmental Issues
Fourth Grade
Check out this cool science fair project on identifying rocks and minerals for kids.
Earth & Space Science
Geology
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
Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.
Astronomy
Third Grade
In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.
Ecology
Environmental Issues
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 will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.
Earth & Space Science
Geology
In this 'paper and pen' science fair experiment, students will research the difference between standard time and astronomical mean time.
Earth & Space Science
Middle School
What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.
Ecology
Fifth Grade

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