Unit 7 and 8 Review

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 color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

What color of star is the coolest?

• Red
• Yellow
• Blue
• White

What are stars?

• Rocky bodies
• Hot exploding balls of gas
• 5 pointed shapes
• Hollywood actors

The color of the star tells us its 

• composition
• Temperature
• Luminosity 
• Mass

What do we use to classify the temperature, brightness, and size of stars?

• Color
• The star's shape
• H-R Diagram

Our galaxy is called the

• Earth Nebula
• The Hubble Galaxy
• The Milky Way
• The Snickers

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

What planet is the smallest?

• Mercury
• Venus
• Mars
• Jupiter