doppler, galaxy, light year

Put the following in order from smallest at the left to largest a the right

• Earth Solar System galaxy universe

• Earth universe Solar System galaxy

• galaxy Solar System Earth universe

• universe Solar System Earth galaxy

A light year measures

• distance

• time

• temperature

• all of these

A spiral galaxy is _____.

• young

• middle aged

• old

An irregular galaxy is _____.

• young

• middle aged

• old

An elliptical galaxy is _____.

• young

• middle aged

• old

Our Galaxy where we live is called _____.

• Andromeda

• Milky Way

• Snickers

• Pinwheel

Elliptical galaxies are ___

• somewhat gassy and some dusty

• the least gassy and dusty

• the most gassy and dusty

Spiral galaxies are ___

• somewhat gassy and some dusty

• the least gassy and dusty

• the most gassy and dusty

Irregular galaxies are ___

• somewhat gassy and some dusty

• the least gassy and dusty

• the most gassy and dusty

In our galaxy, we are located _____.

• in the center

• at the outside edge

• in the spiral arm

• above the galaxy