Plate Movement (Seafloor Spreading Hypothesis)

Warm, less dense material of the lower mantle rises very slowly in the regions of oceanic ridges.

• True

• False

Tags

NGSS.MS-ESS2-1

The development of the Seafloor Spreading Theory is credited to Alfred Wegener.

• True

• False

Answer explanation

Continental Drift Theory

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Paleomagnetic studies of rocks showed the presence of multiple magnetic north poles.

• True

• False

Tags

NGSS.HS-ESS1-5

It is known as the "supercontinent."

• Gondwanaland

• Laurasia

• Pangaea

• Eurasia

Tags

NGSS.MS-ESS1-4

What are the two magnetic poles of the Earth?

• North and West

• East and South

• North and South

• Equator and South

An oceanic trench is formed where two convection cells meet and move upward.

• True

• False

Answer explanation

Oceanic Ridge

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Most scientists believe that a kind of thermal convection is the driving force for plate movement.

• True

• False

Tags

NGSS.MS-ESS2-3

What is the Continental Drift Theory about?

• Continent were once joined into a single landmass.

• Explains the impermanence of seafloor.

• Formation of rock in the mid-ocean ridges.

• Reversal of magnetic poles.

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

In the context of Earth Science, what is seafloor spreading?

• A theory that explain the impermanence of sea floor.

• Present strong evidences or moving tectonic plates.

• A theory that explains the moving of continents.

• All of the choices

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Which group describes continents?

• Africa, Europe, Australia, Central Asia

• Africa, Antartica, Greenland, Europe 

• North America, Canada, Eurasia, Africa, Europe

• North America, South America, Africa, Europe