Galaxy Review

Front

What is a galaxy?

Back

A galaxy is a massive system that consists of stars, star clusters, dust, gas, and dark matter, all held together by gravity.

Front

What are the three main types of galaxies?

Back

The three main types of galaxies are spiral, elliptical, and irregular.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our solar system.

Tags

NGSS.MS-ESS1-2

Front

What is an irregular galaxy?

Back

An irregular galaxy is a type of galaxy that does not have a distinct regular shape, often appearing chaotic.

Front

What is a spiral galaxy?

Back

A spiral galaxy is a type of galaxy characterized by its spiral arms that wind outwards from the center.

Front

What is an elliptical galaxy?

Back

An elliptical galaxy is a type of galaxy that has an ellipsoidal shape and lacks the distinct features of spiral galaxies.

Front

What holds galaxies together?

Back

Galaxies are held together by gravity.

Tags

NGSS.HS-PS2-4

Front

What is the largest galaxy in our local group?

Back

The largest galaxy in our local group is the Andromeda Galaxy.

Front

What is the difference between a star and a galaxy?

Back

A star is a single luminous celestial body, while a galaxy is a collection of billions of stars, along with gas and dust.

Front

What is dark matter?

Back

Dark matter is a form of matter that does not emit light or energy, making it invisible, but it exerts gravitational effects on visible matter.