6. E.1.3- Galaxies and Solar System Test

This scientist classified the galaxies by their shape.

• Hubble

• Copernicus

• Galileo

• Kepler

The distance that light travels in a 1 year

• light month

• light day

• light year

• light second

A collection of stars, dust, and gas held together by gravity.

• sun

• moon

• planet

• galaxy

This type of galaxy has bulge at the center and spiral arms

• Elliptical

• Irregular

• Spiral

• Regular

This type of galaxy has no regular shape

• Elliptical

• Irregular

• Spiral

• Regular

This type of galaxy has a bright center and is roundish or elliptical in shape.

• Elliptical

• Irregular

• Spiral

• Regular

What is the name of our galaxy?

• Hubble

• Kuiper Belt

• Milky Way

• Oort Cloud

What shape do scientists think our galaxy is?

• Spiral

• Elliptical

• Irregular

• Regular

What holds galaxies together?

• Gas

• Gravity

• Heat

• Ice

What is needed in order to sustain life on a planet?

• Atmosphere

• Water

• Warm Temperature

• All are needed to sustain life on a planet