Flashcard: Plate Motion-Chapter 2

Front

What type of plate boundary has the plates moving away from each other?

Back

Divergent boundary.

Front

What is a plate boundary?

Back

The place where two plates meet; most volcanoes and earthquakes occur here.

Front

What is an earthquake?

Back

The sudden shaking of Earth's surface.

Front

Why are Earth's plates able to move?

Back

They are on top of a soft, solid layer of rock in the mantle.

Front

What do patterns on a map of volcanic activity and earthquakes indicate?

Back

Volcanic activity and earthquakes happened in similar areas.

Front

What is a convergent boundary?

Back

A plate boundary where two plates move towards each other.

Front

What is a transform boundary?

Back

A plate boundary where two plates slide past each other.

Front

What is the mantle?

Back

The layer of the Earth between the crust and the core, where convection currents occur.

Front

What causes earthquakes?

Back

The sudden release of energy in the Earth's crust due to plate movements.

Front

What is a volcano?

Back

An opening in the Earth's crust through which molten rock, ash, and gases are expelled.