Earth's Tectonic Plates Unit

Front

What is the Continental Drift Hypothesis?

Back

The Continental Drift Hypothesis states that continents move slowly over Earth's surface.

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Front

What are the two types of crust?

Back

The two types of crust are Continental and Oceanic.

Front

What layer includes the crust and solid, upper mantle?

Back

The layer that includes the crust and solid, upper mantle is called the Lithosphere.

Front

Why were some scientists skeptical of the Continental Drift Hypothesis?

Back

Some scientists were skeptical because they did not know what forces caused the continents to move.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Front

What causes continents to move?

Back

Continents move due to seafloor spreading along the mid-ocean ridge.

Tags

NGSS.MS-ESS2-3

Front

What is the Earth's outermost layer called?

Back

The Earth's outermost layer is called the Crust.

Front

What is the layer beneath the Lithosphere?

Back

The layer beneath the Lithosphere is called the Asthenosphere.

Front

What is seafloor spreading?

Back

Seafloor spreading is the process where new oceanic crust is formed at mid-ocean ridges and older crust moves away.

Tags

NGSS.MS-ESS2-3

Front

What is the difference between Continental and Oceanic crust?

Back

Continental crust is thicker and less dense than Oceanic crust, which is thinner and denser.

Front

What is plate tectonics?

Back

Plate tectonics is the theory that explains the movement of Earth's plates and how they interact.

Tags

NGSS.MS-ESS2-3