Doc's 8th What is a Galaxy?

Galaxies come in different ______ and sizes.

• shapes.

• colors.

• temperatures.

• distances.

What type of galaxy is the Milky Way?

• A) Elliptical

• B) Spiral

• C) Irregular

What does the Milky Way contain?

• Only our Solar System

• Billions of stars

• Both our Solar System and billions of other stars.

The Milky Way has a _______ at its center.

• supermassive black hole

• giant star

• nebula

• asteroid belt

What type of galaxy is disk-shaped with spiral arms, like the Milky Way?

• Elliptical Galaxies

• Spiral Galaxies

• Irregular Galaxies

Tags

NGSS.MS-ESS1-2

Which type of galaxy is round to oval-shaped and mostly contains old stars?

• Spiral Galaxies

• Irregular Galaxies

• Elliptical Galaxies

What type of galaxy has no definite shape and is often formed from collisions?

• Irregular Galaxies

• Spiral Galaxies

• Elliptical Galaxies

How do galaxies form?

• From gas and dust clouds collapsing under gravity

• From stars exploding

• From planets colliding

• From black holes merging

What happens to smaller galaxies in the process of galaxy formation?

• They disappear

• They merge to create larger ones

• They explode

• They shrink

Dark matter plays a crucial role in ______ formation.

• galaxy

• star

• planet

• asteroid