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.

Showing 16 to 30 of 93

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

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

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Outer Space In My Yard

Astronomy
Elementary 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 idea, we learn about how Mercury is smaller in size than Earth, in the planets of our solar system.

Big and Bigger: How Can the Sizes of Mercury and Earth be Compared?

Astronomy
Elementary School

This science fair project idea compares the crater patterns modeled in this project to the ones seen on the Moon and other celestial bodies.

Factors that Affect Crater Formation on the surface of the Moon and other Planetary Bodies

Astronomy
Middle School

In this free science fair project idea, we model what a comet looks like.

Dirty Snowballs: What is a Comet Made Of?

Astronomy
Elementary School

A cross-staff is an instrument used to measure the angular distance between celestial bodies. Follow these simple steps in this science project to make one.

Angular Separation: Angular Distance between Celestial Bodies

Astronomy
Middle School

Orbital Period

Astronomy
Middle School

In this free science fair project idea, we learn about the heliocentric model of the solar system and model it.

Heliocentric: The Movement of the Earth Around the Sun

Astronomy
Middle School

Here is a cool science project idea which helps middle school students in making a model of the earth's interior and determine the thickness of each layer.

Fiery Interior: How Can You Make a Model of the Earth's Interior?

Astronomy
Easy

Here is a cool science project for elementary students to make a model to learn how astronauts use vibrations to determine the nature of the Sun's interior .

Bong!: How do Astronomers use Vibrations to Determine the Nature of the Sun's Interior?

Astronomy
Elementary School

$Diffraction or spreading of light is a complex phenomenon that physicists still study. Students can do this simple science fair project and be a scientist.$

Diffraction: The Spreading of Light

Astronomy
Middle School