Plate Tectonics

Front

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

Back

a few centimeters per year

Front

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

Back

P; S

Front

What is the edge of the Pacific plate known as?

Back

Ring of Fire.

Front

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

Back

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

Front

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

Back

Rifting

Front

How do we know Earth has a liquid core?

Back

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

Front

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

Back

plate tectonics

Front

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

Back

subduction

Front

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

Back

convection

Front

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

Back

ridges on the ocean floor