Stars and Galaxies

What does a star's color indicate?

• size
• age
• temperature
• shape

Scientists think that the Milky Way is probably _______________________.

• an irregular galaxy
• an elliptical galaxy
• a spiral galaxy
• a nebula

True or False
The Sun is the biggest star in the sky.

• True
• False

Why do other stars appear so much smaller than the sun?

• They are much smaller
• They are so far away
• They are not as bright
• They are dwarf stars

What is the name of baby stars?

• Dwarf

• Supergiant

• Protostars

• Nebulas

What is the name of the explosion at the death of a massive star?

• Supergiant
• Supernova
• Black Hole
• Nebula

The color of the star tells us its 

• composition
• Temperature
• Luminosity 
• Mass

The hottest color star is 

• Blue
• White
• Yellow
• Red

One light year is a...

• A length of time
• A distance
• A galaxy
• A measure of gravity

What kind of galaxy is this?

• Ring
• Irregular
• Spiral
• Elliptical