Earth's Formation and Early History

Moon formed from a​ (a)   colliding with Earth during the ​ (b)   . This means the rocks on the ​ (c)   are ​ (d)   Earth, since they formed at ​ (e)   time.

• protoplanet

• Heavy Bombardment Period

• Moon

• the same age as

• asteroid

• Accretion Disk

• older than

• younger than

• the same

• a different

Tags

NGSS.HS-ESS1-6

True or False: Earth, Moon, and all the other objects in the solar system (meteorites, asteroids, other planets) are all the same age since they all formed at about the same time.

• True

• False

Tags

NGSS.HS-ESS1-6

Approximately how many years ago did Earth form?

• 460 years

• 460,000 years

• 4.6 million years ago

• 4.6 billion years ago

The diagram shows a section of land that has been undisturbed and includes a fossil.What can be concluded about the fossil?

• The fossil is younger than the limestone.

• The fossil is older than the shale.

• The fossil is approximately the same age as the limestone.

• It is approximately the same age as the sandstone.

Tags

NGSS.MS-ESS1-4

Pangaea refers to a...

• large supercontinent

• Greek superhero

• Tropical fern

• Mass extinction

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

The geologic time scale is divided up 4 large units of time called:

• Eons

• Eras

• Periods

• Epochs

Tags

NGSS.MS-ESS1-4

Mountains are created at this type of  boundary.

• Divergent 

• Convergent

• Transform 

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

What is the leading theory for the formation of the Earth?

• The Big Bang Theory

• The Nebular Hypothesis

• The Steady State Theory

• The Oscillating Universe Theory

Tags

NGSS.HS-ESS1-6

Which process is responsible for the differentiation of Earth's layers?

• Photosynthesis

• Radioactive decay

• Gravitational settling

• Erosion

True or False: The Earth's early atmosphere was rich in oxygen.

• True

• False