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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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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
This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.
Earth & Space Science
Elementary School
Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox
Astronomy
Sixth Grade
In this free science fair project idea, we model what a comet looks like.
Astronomy
Weather and Climate
Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.
Ecology
Elementary School
Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.
Earth & Space Science
Fifth Grade
Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.
Ecology
Middle School
The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.
Ecology
Tenth Grade
Looking for a project on fossils? Check out this fun science fair project idea to understand the process of coal formation and fossils part in that formation.
Earth & Space Science
Elementary School
Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.
Earth & Space Science
Elementary School
Generate gas from garbage. The purpose of this science fair project is to simulate how landfills generate gases that can be used to create energy.
Ecology
Middle School
The sun's internal structure consists of four different zones varying in temperature and texture.  Do this science fair project to learn what they are.
Astronomy
Middle School

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