Galaxy flashcard

Front

What is a galaxy?

Back

A huge group of stars, dust, gas, and other objects bound together by gravity.

Front

What type of galaxy is characterized by a flat, rotating disk containing stars, gas, and dust, and often a central concentration of stars known as a bulge?

Back

Spiral galaxy.

Front

What type of galaxy has an ellipsoidal shape and lacks the structure of spiral galaxies?

Back

Elliptical galaxy.

Front

What type of galaxy has no defined shape or structure?

Back

Irregular galaxy.

Front

What is the name of the arm of the Milky Way galaxy that contains our solar system?

Back

Orion Arm.

Front

What is the primary force that holds galaxies together?

Back

Gravity.

Tags

NGSS.HS-PS2-4

Front

What is the difference between a galaxy and a solar system?

Back

A galaxy is a large system of stars, while a solar system is a smaller system that includes a star and the objects that orbit it.

Tags

NGSS.MS-ESS1-2

Front

What is a nebula?

Back

A cloud of gas and dust in space, often the birthplace of stars.

Front

What is the Milky Way?

Back

The galaxy that contains our solar system.

Tags

NGSS.MS-ESS1-2

Front

What are the main components of a galaxy?

Back

Stars, gas, dust, and dark matter.