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Science Fair Project Ideas

Find the earth & space science and applied 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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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
This science fair project idea produces consumable fresh water from salt water through desalination.
Natural Resources: Making Fresh Water Out of Salt Water
Earth & Space Science
Elementary School
The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.
How Earth's Wobble Affects the Rotation of Earth?
Earth & Space Science
Astronomy
This science fair project idea explores how water and ice can change the form of rocks.
How Water Beats Rock
Geology
Elementary School
This science fair project will investigate a type of sustainable development project.
What is Sustainable Development?
Ecology
High School
Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.
How Fast Does a Seismic Wave Travel?
Earth & Space Science
Elementary School
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, you will make a model of what scientists in the past thought the universe looked like that is geocentric (Earth-centered).
Model of the Universe
Astronomy
Middle School
In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.
Pasta Coquina: Make Your Own Sedimentary Rock
Earth & Space Science
Geology
Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).
Can You Cook Using Only Sunlight?
Weather and Climate
Middle School
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
In this science fair project, explore the features and surface of the moon and see how the formation of crater changes the looks of the moon.
Craters, Maria, and Highlands: The Moon's Surface Features
Astronomy
Middle School
Does earth's rotation affect the launching of a space rocket? How does it affect the launching? Do this free science fair project and explore these questions.
Demonstrate How Earth's Rotation Affects Launching a Rocket into Space
Earth & Space Science
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
Where is the Polaris - the North Star? Can you use the north star to find out the latitude of your home? Do this free science fair project and explore.
Use the North Star to Determine Where You Live on Earth
Astronomy
Middle School

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