Plate tectonics, plate boundaries

Front

What does the theory of Continental Drift explain?

Back

Continents were once together and slowly drifted to where they are today

Front

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

Back

Convection

Front

The super continent that existed when all continents were together was named

Back

Pangea

Front

What is the process of convection?

Back

The process of hot material rising and cooler material sinking in circular patterns

Front

Transform Boundary

Back

Where two plates slide past each other.

Front

The region where an oceanic plate sinks down into the asthenosphere at a convergent boundary, usually between continental and oceanic plates.

Back

subduction zone

Front

How do the plates move along a divergent boundary?

Back

They move away from one another

Front

How do the plates move along convergent boundaries?

Back

They move towards one another

Front

How do the plates move along transform boundaries?

Back

They move past one another

Front

Observe this diagram of a plate boundary. One statement BEST describes what is happening. Options: the oceanic crust is melting. , the denser oceanic crust is subducting under the less dense oceanic crust, volcanic islands are forming. , the tectonic plates are moving away from each other.

Back

the denser oceanic crust is subducting under the less dense oceanic crust