Earth's Layers + Plate Tectonics

Front

What forms when two continental plates collide at a convergent boundary?

Back

Mountains

Front

What is the inner core of the Earth?

Back

A solid sphere of iron and nickel.

Front

What was the name of the supercontinent that existed millions of years ago?

Back

Pangaea.

Front

How does oceanic crust compare to continental crust in terms of density?

Back

Oceanic crust is more dense than continental crust.

Front

What occurs when a continental plate collides with an oceanic plate and the oceanic plate sinks underneath?

Back

Subduction.

Front

What are the three main layers of the Earth?

Back

Crust, mantle, and core.

Front

What is the outermost layer of the Earth called?

Back

The crust.

Front

What is the process called when tectonic plates move apart?

Back

Divergence.

Front

What geological feature is formed at a mid-ocean ridge?

Back

New oceanic crust.

Front

What is the mantle primarily made of?

Back

Semi-solid rock that flows slowly.