Plate Boundaries

Front

When two tectonic plates are moving away from each other, the boundary between them is called...

Back

Divergent boundary

Front

When two tectonic plates are moving toward each other, the boundary between them is called...

Back

Convergent boundary

Front

When two tectonic plates slide past each other, neither crashing together, nor pulling apart, the boundary between them is called...

Back

Transform boundary

Front

Sometimes, when two tectonic plates collide, one is pushed below the other; this action at the convergent boundary is called...

Back

Subduction

Front

When an oceanic plate is subducted under a continental plate, a deep valley is formed in the ocean. What is this valley called?

Back

a trench

Front

When a continental plate is pulled away from another continental plate, the area of crust that is thinned and pulled apart is called.

Back

a rift zone or rift valley

Front

When an oceanic plate is pulled away from another oceanic plate, magma spews from below the crust and this is formed.

Back

ocean spreading ridge

Front

When divergent plates pull the crust apart, cracks form in the crust called...

Back

Fissures

Front

When convergent plates collide, if both plates are pushed upward, this forms.

Back

Mountain Ranges

Front

When fissures form, magma is pushed to the surface forming...

Back

Volcanoes