Plate Tectonics Modified

Front

What is Wegener’s hypothesis of continental drift?

Back

The continents were once joined together in a single landmass.

Front

What is a place where two tectonic plates slip past each other called?

Back

Transform boundary.

Front

What geological feature is produced by a collision between two pieces of continental crust at a converging boundary?

Back

Mountain range.

Front

What is a fossil?

Back

Any trace of an ancient organism that has been preserved in rock.

Front

Where does molten material rise from during sea-floor spreading?

Back

Along mid-ocean ridges.

Front

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

Back

Plate tectonics.

Front

What is a divergent boundary?

Back

A place where two tectonic plates move away from each other.

Front

What is a mid-ocean ridge?

Back

An underwater mountain range formed by sea-floor spreading.

Front

What is subduction?

Back

The process where one tectonic plate moves under another plate.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.