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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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Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?
Earth & Space Science
Sixth Grade
Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.
Weather and Climate
Sixth Grade
Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.
Weather and Climate
Second Grade
Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.
Astronomy
Middle School
Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.
Ecology
Sixth Grade
Collect meteorite dust with a magnet in your very own backyard!  The objective of this science fair project is to gather meteorite dust to study outer space.
Astronomy
Elementary School
In this experiment you will use plastic and magnets to test your local soil composition.
Earth & Space Science
Sixth Grade
Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.
Ecology
Environmental Issues
This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.
Ecology
Sixth Grade
In this science fair project, you will make a model of what scientists in the past thought the universe looked like that is geocentric (Earth-centered).
Astronomy
Middle School
Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.
Ecology
Fifth Grade
Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.
Weather and Climate
Ninth Grade
Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.
Earth & Space Science
Fourth Grade
Science fair project that examines condensation and the conditions needed in order for dew to form.
Weather and Climate
Second Grade

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