Stars, Galaxies, Nebula

a hot, dense, slowly cooling sphere of carbon that remains when a red giant star dies

• red giant

• supergiant

• black hole

• white dwarf

an immense cloud of dust & gas where stars are born

• black hole

• nebula

• prominence

• supernova

What is the life cycle of a medium sized star?

• Nebula, red giant, nova, white dwarf, black hole
• Red giant, nova, white dwarf, dead star
• Nebula, red giant, nova, white dwarf, dead star
• Nebula, white dwarf, dead star

All of the galaxies together is _______.

• nebula
• solar system
• Milky Way
• universe

Elliptical, spiral, and irregular are all types of ______.

• solar systems
• universes
• galaxies
• stars

What color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

What color of star is the coolest?

• Red
• Yellow
• Blue
• White

The color of the star tells us its 

• composition
• Temperature
• Luminosity 
• Mass

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

All stars begin their lives as nebulae, which are huge clouds of dust and gases made mostly of what?

• Hydrogen and Oxygen
• Hydrogen and Helium
• Helium and Oxygen
• Oxygen and Iron