Space Terms

The Universe is

• all existing matter and space

• a type of spiral galaxy

• a celestial body held together by gas

• a central star with its associate planets

the multiverse is

• a type of galaxy with spiral arms

• a theory that there are numerous other universes besides ours

• the distance light travels in one year

• a type of galaxy with an irregular shape

A spiral galaxy is

• An oval-shaped galaxy that contains mainly older stars, a few new stars, and very little gas and dust.

• A galaxy that has an undefined shape

• a galaxy whose arms curve outward in a pinwheel pattern

Our own Milky Way is a

• irregular galaxy

• elliptical galaxy

• spiral galaxy

A star is defined as

• A celestial body consisting of rocks and minerals

• A celestial body consisting of light and heat

• A celestial body consisting of partials and dust

• A celestial body consisting of a mass of gas held together by its own gravity

Our Milky Way contains how many stars?

• one thousand

• one million

• 100 billion

• 800 billion

A light year is defined as

• the distance light travels in one year

• the distance between the earth and a star

• the time it takes for a meteor to hit Earth

A solar system is

• all existing matter and space considered as a whole; the cosmos.

• a central star with its associated planets, asteroids, meteors, etc.

• An oval-shaped galaxy that contains mainly older stars, a few new stars, and very little gas and dust.

An asteroid is

• Made up of ice, dust, and rocky material

• When a small piece of asteroid or comet enters Earth's atmosphere and burns up

• Made up of metals and rocky material

A meteor is

• Made up of ice, dust, and rocky material

• Made up of metals and rocky material

• When a small piece of asteroid or comet enters Earth's atmosphere and burns up