Plate Tectonics Overview

Front

What is a valley that forms on land where two plates are moving apart?

Back

Rift valley

Front

What is a vibration in the ground that results from the movement along breaks in Earth’s lithosphere?

Back

Earthquake

Front

What is an area where two or more lithospheric plates collide?

Back

Convergent boundary

Front

What is the theory that continents are in constant motion on the surface of Earth?

Back

Continental drift

Front

What is the solid layer of Earth’s mantle below the lithosphere that behaves like a plastic material?

Back

Asthenosphere

Front

What is the boundary called where two tectonic plates slide past each other?

Back

Transform boundary

Front

What is the process called when two tectonic plates move away from each other?

Back

Divergent boundary

Front

What is the name of the layer of Earth that includes the crust and the uppermost part of the mantle?

Back

Lithosphere

Front

What geological feature is formed at a convergent boundary where an oceanic plate is forced under a continental plate?

Back

Subduction zone

Front

What is the term for the movement of tectonic plates caused by convection currents in the mantle?

Back

Plate tectonics