Flashcards: Earth and Space Test Review

Front

What is the primary difference between continental crust and oceanic crust?

Back

Continental crust is thicker and less dense than oceanic crust.

Front

Where is the asthenosphere located?

Back

In the upper mantle below the lithosphere.

Front

What occurs at a divergent boundary?

Back

Plates move away from each other

Front

During seafloor spreading, what happens to the oceanic crust?

Back

It is created at the mid-ocean ridge.

Front

What typically forms when two continental plates collide?

Back

A mountain range

Front

In which layer of the Earth is the mantle located?

Back

Mantle

Front

A transform boundary is characterized by:

Back

plates sliding past each other horizontally

Front

What happens when oceanic crust collides with continental crust?

Back

The oceanic crust subducts beneath the continental crust.

Front

The state of Earth's outer core is:

Back

Liquid

Front

What occurs at an ocean-to-ocean convergent boundary?

Back

A subduction zone forms and one plate sinks beneath the other