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Earth & Space Science - Science Fair Project Ideas

Find the earth & space science, science fair project ideas you're looking for. Many different science fair projects are available for you to browse through and get ideas for your own science fair project.

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Check out this cool elementary school science fair project idea which helps students explore the reasons for the brightness of planets and the moon in the sky.
Brighter: Why are Planets and the Moon so Bright in the Sky?
Astronomy
Elementary School
Check out this fun elementary science project idea about types of rocks formed after cooling down of magma or lava and intrusive and extrusive igneous rocks.
Fire Rocks: What Type of Rock is Formed When Lava Cools?
Geology
Elementary School
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
What Makes the Best Compost Pile?
Ecology
Elementary School
In this free science fair project idea, we learn about how scientists use indicators to predict the earth's climate and geology many years ago.
Indicators: How do Scientists Gather Clues to Climates of the Past?
Geology
Ecology
This project tests the feasibility of earthworms as a means of recycling kitchen waste into fertile garden soil.
Can Earthworms be Used to Recycle Kitchen Wastes into Fertile Garden Soil?
Ecology
Fourth Grade
The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.
Does Carbon Dioxide Raise the Temperature of the Atmosphere?
Ecology
High School
In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.
Exploring Erosion, Sediments and Jetties
Earth & Space Science
Geology
Here is a cool science fair project idea for elementary school students on the effects of volcanic explosion on the amount of water in rivers and streams.
Before and After: How do Streams and Rivers Behave Before and After a Volcanic Explosion?
Geology
Elementary School
What is an anemometer? It's a device use to measure wind speed. Learn how to make an anemometer in this free science fair project.
Building an Anemometer
Earth & Space Science
Weather and Climate
In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.
Edge Effect
Ecology
Environmental Issues
This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.
How Long Will Your Trash Bag Live?
Ecology
Elementary School
In this science fair project, students make their own rain gauge to measure rainfall.
DIY Rain Gauge
Weather and Climate
Fourth Grade
Which is bigger - the sun or the moon? Why do they appear to be the same size in the sky? Do this free science fair project and explore apparent size.
Determine Why the Sun and the Moon Appear to Be the Same Size in the Sky
Astronomy
Middle School
What affects the phases of the moon? In this free science fair project, experiment with how the position of the sun, moon, and earth affects the moon phase.
Determine How the Positions of the Sun, the Moon, and Earth Affect Moon Phases
Astronomy
Middle School
The purpose of this science fair project is to determine how the sun's direction affects temperature.
How Does the Sun's Direction Affect Temperature?
Earth & Space Science
Elementary School

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