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Astronomy Science Fair Project Ideas

Browse from many free astronomy science fair project ideas. These astronomy science fair projects are a great place to find ideas for an upcoming science fair.

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Here is a fun science fair project idea for elementary school that explores and demonstrate a total and partial solar eclipse when the Moon covers the Sun.
Shadows: How Can the Moon Cover the Sun?
Astronomy
Elementary 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
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
In this free science fair project, identify each of the Galilean satellites by name and discover their motions during an Earth day.
Galilean Satellites: Jupiter's Largest Moons
Astronomy
Middle School
Fun elementary school science fair project which explains how the way the axis of a planet is tilted in relation to the Sun affect its surface temperature.
How Hot?: How Does a Planet's Distance From the Sun Affect its Temperature?
Astronomy
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?
Astronomy
High 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
In this free science fair project, explore the phases of Venus by modeling the phases of Venus as a morning and evening star.
Phases of Venus: Changes in Shape and Size
Astronomy
Middle School
Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.
Measuring the Diameter of the Sun
Astronomy
Middle 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
The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.
Do phases of the moon affect circadian patterns in mammals?
Astronomy
Middle School
This project concerns activity happening millions of miles away, on the sun.
Sunspots: Calculating the Rotation Period of the Sun
Astronomy
Middle School
In this free science fair project idea, we learn how astronomers determine the shape of asteroids by analyzing their rotation.
Space Rocks: How Can Astronomers Determine the Shape of an Asteroid?
Astronomy
Elementary School
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
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

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