Components of the Universe

A _____ is the end of the life cycle of the highest mass stars.

• black hole
• black dwarf
• supernova
• nebula

A _____ has gravity that is so strong that light cannot escape it.

• black hole
• black dwarf
• white dwarf
• neutron star

A _____ is a large collection of stars, dust, and gas.

• galaxy
• nebula
• planet
• star

Which kind of galaxy has a large amount of gas and young stars?

• irregular galaxy
• spiral galaxy
• elliptical galaxy

Which kind of galaxy has a medium amount of gas and middle aged stars?

• irregular galaxy
• spiral galaxy
• elliptical galaxy

Which kind of galaxy has little gas and old stars?

• irregular galaxy
• spiral galaxy
• elliptical galaxy

Earth is found in a spiral galaxy called _____.

• The Milky Way
• Andromeda
• Megellanic Clous
• Proxima Centauri

On the H-R diagram, the Sun is a _____.

• Main Sequence star
• Red Giant
• White Dwarf
• Blue Giant

A _____ is body made of gas, held together by gravity and generates light by nuclear fusion.

• star
• galaxy
• nebula
• black hole

A _____ is the death of a large star by massive explosion.

• supernova
• black dwarf
• galaxy
• universe