Plate Boundaries

Front

What is a convergent boundary?

Back

A boundary where two tectonic plates move together and collide.

Front

What is a divergent boundary?

Back

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

Front

What is a transform boundary?

Back

A boundary where two tectonic plates slide past each other horizontally.

Front

What is an example of a divergent boundary?

Back

A mid-ocean ridge.

Front

What causes the movement of tectonic plates?

Back

Convection currents in the Asthenosphere.

Front

What is sea-floor spreading?

Back

The process that forms new sea floor at mid-ocean ridges.

Front

What type of boundary is found in southern California?

Back

Transform boundary.

Front

What is the Asthenosphere?

Back

A semi-fluid layer of the Earth's mantle that allows tectonic plates to move.

Front

What happens at a subduction zone?

Back

One tectonic plate is forced under another, often leading to volcanic activity.

Front

What is the significance of mid-ocean ridges?

Back

They are sites of new oceanic crust formation and are associated with divergent boundaries.