Ch. 10 Plate Tectonics Vocabulary Pre-Test

Front

What causes the movement of Earth’s plates?

Back

Convection currents.

Front

What is the place where two plates come together called?

Back

Convergent boundary.

Front

What is the term for a large land mass meaning 'all land'?

Back

Pangaea.

Front

In which part of the Earth do scientists think convection currents flow?

Back

Mantle.

Front

What is the process called when the ocean floor sinks beneath a deep-ocean trench and back into the mantle?

Back

Subduction.

Front

What is a transform boundary?

Back

A place where two tectonic plates slide past each other.

Front

What is a divergent boundary?

Back

A place where two tectonic plates move apart from each other.

Front

What is continental drift?

Back

The theory that continents have moved over geological time and were once joined together.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the mantle?

Back

The layer of the Earth between the crust and the core, composed of semi-solid rock.