Match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. Use each word only once.
1. Disk
2. Halo
3. Spiral arm
4. Bulge
5. Globular cluster
6. Spiral Galaxy
a. The circular but relatively flat portion of the galaxy is the ______.
b. The first portion of the galaxy to form was the ________.
c. A tightly packed goup of a few hundred thousand very old stars is a _______.
d. A ________ stands out in a photo of a galaxy because it shines brightly with light from massive young stars and glowing clouds of gas and dust.
e. Our Milky Way galaxy is a _______.
f. Stars orbiting in the ________ near the galaxy's center can have orbits highly inclinded to the galactic plane.
1. Disk
2. Halo
3. Spiral arm
4. Bulge
5. Globular cluster
6. Spiral Galaxy
a. The circular but relatively flat portion of the galaxy is the ______.
b. The first portion of the galaxy to form was the ________.
c. A tightly packed goup of a few hundred thousand very old stars is a _______.
d. A ________ stands out in a photo of a galaxy because it shines brightly with light from massive young stars and glowing clouds of gas and dust.
e. Our Milky Way galaxy is a _______.
f. Stars orbiting in the ________ near the galaxy's center can have orbits highly inclinded to the galactic plane.