Stress that squeezes rock until it folds or breaks.

 A plate boundary where two plates move toward each other.

A plate boundary where two plates move away from each other.

Term used to describe a volcano that is not currently active but able to become active in the future.

The shaking that results from the movement of rock beneath Earth’s surface

Term used to describe a volcano that is no longer active and unlikely to erupt again.

 A break in Earth’s crust along which rocks move.

the rigid outer part of the earth, consisting of the crust and upper mantle

Liquid magma that reaches the surface.

A molten mixture of rock-forming substances, gases, and water from the mantle.

 a hypothetical supercontinent that included all current land masses, believed to have been in existence before the continents broke apart

The process by which molten material adds new oceanic crust to the ocean floor.

The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.

A plate boundary where two plates move past each other in opposite directions.

A giant wave usually caused by an earthquake beneath the ocean floor.

 A weak spot in the crust where magma has come to the surface.