Milky Way lesson check 2023

A Group of stars, and or star systems, star clusters, dust and gas held together by gravity is known as:

• Universe

• Galaxy

• Solar System

• Planet

What Galaxy is Earth located?

• Andromeda

• Milky Way

• Sagittarius

• Snickers

Why is the galaxy called the Milky Way?

• Because it looks hazy and milky from Earth, it glows a band of light that stretches across the sky.

• Because of its dense, fluid center, it is dark and scary

• It's a translation of an ancient name for "galaxy"

Scientists believe nearly __________ stars lie in our galaxy, and just as many planets.

• 2 billion stars

• 200 milion stars

• 200 billion stars

• too many stars to count

It would take you ___________ just to get from one end to the other!

• 100,000 light-years

• 100,000 miles

• 100,000 star-years

Tags

NGSS.MS-ESS1-3

Is the Milky Way the only galaxy in the universe?

• Yes

• No

Younger stars that orbit the galactic bulge are located in the

• Halo regions.

• galactic disk.

• galactic bulge.

• density waves.

The area of the galaxy that has the most dense stars surrounding a supermassive black hole.

• Halo region

• galactic bulge

• galactic disk

• spiral density arms

The area where faint, old stars exists that surrounds the disk & bulge.

• Halo region

• galactic bulge

• galactic disk

• spiral density regions

Our Sun and solar system are located

• In the Halo of the Milky Way.

• about 2/3 from the center of the Milky Way.

• near the middle of the Milky Way.

• In the corona