Continental Drift and Plate Tectonics Review

Front

What rises up to create new crust in sea floor spreading?

Back

Magma, lava, molten rock.

Front

What do glacier scars found in Africa provide evidence for?

Back

Africa was once in an area of the Earth that had a very cold climate.

Front

What is the outermost, rigid layer of the Earth made up of tectonic plates called?

Back

Lithosphere.

Front

What is the process that makes new ocean floor?

Back

Sea floor Spreading.

Front

What type of boundary occurs when tectonic plates collide?

Back

Convergent boundary.

Front

What is the term for the movement of tectonic plates away from each other?

Back

Divergent boundary.

Front

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

Back

Transform boundary.

Front

What geological feature is formed at a convergent boundary?

Back

Mountains, trenches, or volcanic arcs.

Front

What is the theory that explains the movement of Earth's plates?

Back

Plate Tectonics.

Front

What is the layer of the Earth beneath the lithosphere called?

Back

Asthenosphere.