Convection, Pangea, and Continental Drift

Front

What is a transform boundary?

Back

A transform boundary is a type of tectonic plate boundary where two plates slide past each other horizontally.

Tags

NGSS.MS-ESS2-3

Front

Why was the Continental Drift theory initially not accepted?

Back

The theory was not well received because scientists did not know the force responsible for moving the continents.

Front

What are the three types of evidence supporting Alfred Wegener's Theory of Continental Drift?

Back

Fossils, Land forms, and Climate.

Front

Who proposed the theory of Continental Drift?

Back

Alfred Wegener.

Tags

NGSS.MS-ESS2-3

Front

What causes Earth's tectonic plates to move?

Back

Convection currents in the mantle.

Tags

NGSS.MS-ESS2-3

Front

Define convection currents.

Back

Convection currents are the movement of fluid caused by differences in temperature and density, which can drive the movement of tectonic plates.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Front

What is Pangea?

Back

Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras, where all continents were joined together.

Tags

NGSS.MS-ESS2-3

Front

What is the significance of fossils in supporting the theory of Continental Drift?

Back

Fossils of the same species found on different continents suggest that these continents were once connected.

Tags

NGSS.MS-ESS2-3

Front

Explain the concept of continental drift.

Back

Continental drift is the theory that continents have moved over geological time from a single supercontinent to their current positions.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Front

What is a convergent boundary?

Back

A convergent boundary is where two tectonic plates move toward each other, often causing one plate to be forced below the other.