Universe Review

Which word(s) describes all of the space and everything in it?

• galaxy
• planet
• universe
• HR Diagram

According to this Hertzsprung-Russell Diagram which stars, in the main sequence, are the brightest?

• White
• Red
• Blue
• Yellow

Black Holes are thought to be remnants (remains) of a ______________ explosion.

• Death Star
• The Big Bang Theory
• Supernova
• Planetary Nebula

The color of a star depends on the temperature. Which one lists the colors in order based on decreasing temperature?

• Red, Yellow, White, Blue
• Red, Yellow, Red, Yellow
• Blue, White, Yellow, Red
• Blue, Red, White, Yellow

The shape of our Milky Way galaxy can be classified as a(an) ____________.

• Spiral Galaxy
• Elliptical Galaxy
• Irregular Galaxy
• French Galaxy

The Sun's position in the Milky Way galaxy is on/in the _______.

• Center (in the black hole)
• Edge (tip of an arm)
• Arm (about 2/3 from the center)
• Outside (not in the galaxy)

Huge clouds of dust and gas are called _________.

• Protostar
• Nebula
• Neutron Star
• Comets

What is a light year?

• A unit of time
• The amount of time light takes to travel in one year.
• 10 thousand meters
• How far light travels in one year.

Which stars have the highest surface temperature?

• Yellow
• Red
• Blue
• Orange

Betelgeuse is classified as a ____________ star.

• Supergiant
• Giant
• White Dwarf
• Main Sequence