Galaxies!

How many stars make up our galaxy?

• 200
• 200,000
• 200 million
• 200 billion

The name of our galaxy is the

• Andromeda
• Milky Way
• Magellan
• Whirlpool

We can't see all of the stars in our galaxy because they

• are too far away
• are too hot
• are revolving too quickly

There are other galaxies besides ours.

• True
• False

We have discovered ___ of galaxies.

• hundreds
• millions
• billions

The Milky Way is shaped like a

• ellipse
• spiral
• double spiral

No one knows how large the universe is.

• False
• True

All stars begin as a __________?

• giant
• black hole
• white dwarf
• nebula

Place these objects in order from smallest to largest.

• Planets, solar system, universe, galaxy
• Solar system, planets, galaxy, universe
• Planets, solar system, galaxy, universe
• Galaxy, solar system, planets, universe

Galaxies are composed of (best answer)

• stars
• stars and gas
• stars, dust, and gas
• stars, dust, and gas held together by gravity