ES-Lsn5-Drag & Drop-1

1. What type of galaxy is the Milky Way?​ ​ ​ ​ (a)  

• Spiral
• Elliptical
• Irregular 
• Lenticular

2. Approximately how many stars are estimated to be in the Milky Way?

 ​ (a)  

• 100 billion
• 1 billion
• 10 billion
• 1 trillion

3. What is the name of the supermassive black hole at the center of the Milky Way?​ ​ (a)  

• Sagittarius A*
• Sirius
• Rigel
• Betelgeuse

4. Where is the solar system located within the Milky Way?​ (a)  

• Orion Arm
• Galactic center
• Perseus Arm
• Outer rim

5. What are regions of gas and dust where stars form called?​ ​ (a)  

• Nebulas
• Pulsars
• Quasars
• Novas

6. What type of stars make up most of the Milky Way's disk?​ (a)  

• Main sequence stars like the Sun
• Red giants
• White dwarfs
• Blue giants

7.What surrounds and binds the Milky Way but cannot be directly observed?​ (a)  

• Dark matter
• Dark energy
• Black holes
• Exoplanets

 

8. How wide is the Milky Way estimated to be?​ ​ (a)  

• 100,000 light years
• 10,000 light years
• 1 million light years
• 10 million light years

9. What is the name of the larger satellite galaxy orbiting the Milky Way?​ ​ (a)  

• Large Magellanic Cloud
• Small Magellanic Cloud
• Andromeda 
• Triangulum

10. What are clusters of stars orbiting the galaxy's halo called?​ ​ (a)  

• Globular clusters
• Open clusters 
• Nebulas
• Galaxies