Milky Way Galaxy Unit Assessment

Multiple Choice

Stars cluster into gigantic assemblages called

• nebulae.

• galaxies.

• stars.

• none of the answers are correct.

Multiple Choice

Our Milky Way galaxy is just one of roughly __ billion others.

• ten

• a hundred

• a thousand

• a million

Multiple Choice

A galaxy is a huge collection of stellar and interstellar matter isolated in space and bound by

• its mass.

• its temperature.

• its density.

• its gravity.

Open Ended

Why does the galactic disk in our Milky Way galaxy appear as a broad band of light across the sky.

Drag and Drop

The spiral arms wind out from the dense central region called the ​

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which consists mainly of ​

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, cooler stars and are the site of active star formation.

Drag these tiles and drop them in the correct blank above

bulge

older

halo

younger

Multiple Choice

What type of galaxy is the Milky Way galaxy?

• Spiral

• Irregular

• Ecliptic

Multiple Choice

The spiral arms wind out from a dense central region called the

• bulge.

• halo.

• spiral arm.

• disk.

Labelling

Label the Diagram

Drag labels to their correct position on the image

globular

bulge

spiral arms

disk

halo

Match

Match statement with correct term:

• Disked-shaped with central bulge

• Contain stars, gas, and dust

• Densely packed with stars

Spiral Galaxy

Spiral Arms

The bulge

• Spiral Galaxy

• Spiral Arms

• The bulge

Multiple Choice

Our solar system is located within which spiral arm?

• Perseus

• Scutum

• Sagittarius

• Orion

Multiple Choice

How fast does the Sun orbit the Galactic Center?

• 5,000

• 15,000

• 20,000

• 25,000

Open Ended

The Milky Way galaxy is primarily composed of stars, gas, and ___.

Multiple Choice

Spiral density waves travel through the galaxy, compressing gas and dust which leads to

• star formation.

• neutral space.

• supernovae explosions.

Multiple Choice

Spiral density waves are regions of enhanced

• mass.

• temperature.

• density.

Multiple Choice

Where in the Milky Way galaxy are young, hot, and luminous stars are found ?

• In the spiral arms and central disk.

• In the outer halo regions.

• Between galaxies.

Multiple Choice

Older stars are found

• in the outer spiral arms.

• inner spiral arms.

• in the central bulge.

• in the outer halo.

Multiple Choice

Variable stars change in brightness over time.

• This is a FALSE statement.

• This is a TRUE statement.

Drag and Drop

The Galactic ​

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is a dense​

Placeholder

packed with stars and dust.

Drag these tiles and drop them in the correct blank above

center

bulge

halo

black hole

Open Ended

What is located at the center of the Milky Way galaxy?