Plate Tectonics

How fast are Earth's plates moving due to tectonic motion?

• a few centimeters per year

• a meters per year

• a few centimeters per century

• a few kilometers per year

The _________-type seismic waves can travel through liquids and solids. The _________-type seismic waves can travel through solids only.

• S; P

• P; S

• S; S

• P; P

The edge of the Pacific plate is known as the

• Volcanic Ring.

• Ring of Fire.

• Mid-ocean Ridge.

• Ring of Convection.

From the center outward, the correct order of the zones of Earth is

• liquid core, solid core, crust, mantle, atmosphere.

• liquid core, solid core, mantle, crust, atmosphere.

• solid core, mantle, liquid core, crust, atmosphere.

• solid core, liquid core, mantle, crust, atmosphere.

__________ is the process in which hot mantle material drags sections of Earth’s crust apart, creating new crust.

• Subduction

• Rifting

• Conduction

• Ridging

• Drifting

How do we know Earth has a liquid core?

• Both S and P waves pass through it.

• Because we have used X-rays to probe it.

• S waves pass through it, but P waves do not.

• P waves pass through it, but S waves do not.

Tags

NGSS.MS-PS4-2

The shifting of large blocks of Earth's surface is usually referred to today as what?

• the dynamo effect

• the Coriolis effect

• continental drift

• plate tectonics

Tags

NGSS.MS-ESS2-3

The process in which two tectonic plates meet and one slips beneath another is called _________.

• subduction

• convection

• divergence

• transformation

The process by which material heated from below rises and cooled material sinks is called _________.

• convection

• conduction

• radiation

• diffusion

Where do we find the youngest parts of Earth’s crust?

• at the bases of mountains

• at the tops of mountains

• subduction zones

• None of these choices are correct.

• ridges on the ocean floor

Tags

NGSS.MS-ESS2-3