Continental Drift

Front

What is the theory that explains how continental landmasses drift across the Earth?

Back

Continental Drift

Front

What was the name of the supercontinent proposed by Alfred Wegener?

Back

Pangaea

Front

What do we call the boundary where two tectonic plates move toward each other?

Back

Convergent boundary

Front

What is the term for two lithospheric plates moving apart, primarily on the sea floor?

Back

Divergent boundary

Front

What are the huge pieces of the Earth's lithosphere that fit together called?

Back

Tectonic plates

Front

What is the process called when one tectonic plate is forced under another?

Back

Subduction

Front

What type of boundary occurs when two tectonic plates slide past each other?

Back

Transform boundary

Front

What geological feature is formed at a convergent boundary?

Back

Mountains or deep ocean trenches

Front

What is the main driving force behind the movement of tectonic plates?

Back

Convection currents in the mantle

Front

What is the significance of the mid-ocean ridge in plate tectonics?

Back

It is a divergent boundary where new oceanic crust is formed.