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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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This science fair project idea produces consumable fresh water from salt water through desalination.
Earth & Space Science
Elementary School
Analyze temperature and precipitation data to determine whether current weather conditions are outside the historical norm.
Weather and Climate
Middle School
Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.
Earth & Space Science
Middle School
The purpose of this project is to examine the sun's highest altitude in the sky during the day to determine if it is exactly halfway between sunrise and sunset.
Earth & Space Science
Middle School
Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?
Geology
Third Grade
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
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
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
Examine the presence of seeds in open fields. Collect seeds on socks by walking through open fields of grass or other growth. Germinate seeds on socks
Ecology
Middle School
Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.
Ecology
Kindergarten
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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