Amplify Plate Motion Final Test

Front

What is the Earth's outer layer made of underneath the soil and ocean?

Back

Underneath both the soil and the ocean, Earth's outer layer is made of hard, solid rock.

Front

What is an underwater mountain range formed when two plates move apart called?

Back

Mid-Ocean Ridge.

Front

What happens to soft, solid rock when two tectonic plates move apart?

Back

Soft, solid rock from underneath the plates rises and hardens, adding solid rock to the edges of both plates.

Front

How did the fossil remains of Cynognathus end up in Argentina and South Africa?

Back

Argentina and South Africa are parts of different plates that slowly moved far apart over millions of years.

Front

What occurs when two tectonic plates move toward each other?

Back

One plate goes underneath the other plate and sinks into the soft rock below.

Front

What is the process called when tectonic plates move apart?

Back

Divergence.

Front

What is the term for the boundary where two tectonic plates meet?

Back

Plate boundary.

Front

What geological feature is created at a convergent boundary?

Back

Mountains or deep ocean trenches.

Front

What is the significance of the Mid-Ocean Ridge?

Back

It is a major underwater mountain range formed by the divergence of tectonic plates.

Front

What is subduction in plate tectonics?

Back

Subduction is the process where one tectonic plate moves under another plate and sinks into the mantle.