Galaxies

The Milky Way Galaxy is made up of a huge collection of ______ (check ALL that apply).

• stars

• gas

• dust

• all of the above

What is a light year?

• The distance light can travel in one year. 

• The time it takes light to travel. 

True or False?

The Milky Way has at least two hundred billion stars in it! 

• True

• False

There are roughly 50 galaxies close to the Milky Way called the _______. 

• galaxy group

• local group

• star group

What are the three types of galaxies?

• Elliptical, Spiral, & Regular

• Circular, Spiral, & Irregular

• Elliptical, Spiral, & Irregular

What do scientists believe is at the center of a galaxy?

• Nebula

• Star

• Black Hole

What part of the Milky Way is our sun and solar system in?

• halo

• bulge

• spiral arm

• center

True or False?

The scientist/astronomer Galileo discovered the Milky Way was made of many, many faint stars. 

• False

• True

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