Stars and galaxies

What do you call a scientist who studies objects in space?

• meteorologist

• astronomer

• astronaut

What type of star is one that is no bigger than Earth?

• a red star

• a blue star

• a supergiant

• a dwarf star

What type of galaxy is oval-shaped?

• a spiral galaxy

• an elliptical galaxy

• an irregular galaxy

Most distances in space and to stars outside of our solar system are measured using.....

• light-years

• astronomical units

• feet

• meters

What type of galaxy has no special shape or form?

• a spiral galaxy

• an elliptical galaxy

• an irregular galaxy

How bright a star looks to observers on Earth is its....

• true brightness

• apparent brightness

The actual amount of energy a star gives off is its...

• true brightness

• apparent brightness

The Milky Way is a....

• spiral galaxy

• elliptical galaxy

• irregular galaxy

• star

A very large star is a....

• dwarf star

• a red one

• a blue one

• a supergiant

A large group of stars, gas, and dust is called....

• a universe

• a cluster

• a galaxy

• a solar system