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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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What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.
Ecology
Environmental Issues
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
Is temperature a requirement for solar energy uses? This project tests this theory and examines the amount of usable sunlight for solar-energy applications.
Weather and Climate
Middle School
The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!
Astronomy
Third Grade
Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.
Earth & Space Science
Second Grade
This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.
Earth & Space Science
Elementary School
What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.
Ecology
Fifth Grade
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
Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.
Weather and Climate
Fifth Grade
Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?
Ecology
Fifth Grade

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