Unit 4 Review - Earth Science

Front

Earth, and the rest of the solar system, formed from a giant cloud of gas and dust in space called a __.

Back

nebula

Front

What force caused the cloud of gas and dust to collapse, forming the sun and planets?

Back

gravity

Front

As the cloud collapsed, it begin to spin. This spinning caused it to flatten, forming a ___.

Back

protoplanetary disk

Front

The ___ formed from most of the material in the cloud, in a central bulge in the disk.

Back

sun

Front

Growth by collision in the solar system's evolution is called ___.

Back

accretion

Front

This process is known as ___: Since the early Earth was molten, the most dense material sank to the center forming the core. Less dense material rose towards the surface, forming the crust.

Back

differentiation

Front

Which one takes 24 hours? (Options: rotation, revolution)

Back

rotation

Front

These are the 4 planets (Mercury, Venus, Earth, Mars) are known as

Back

terrestrial planets

Front

Where is the Asteroid Belt located in the Solar System?

Back

between Mars and Jupiter

Front

What factor causes one planet to have more gravity than other planets?

Back

The planet's mass.