Continental Drift Flash Cards

You may prefer our related Brainscape-certified flashcards:
1
Q

Who believed that the continents were once joined in a large landmass and gradually drifted apart?

A

Alfred Wegener

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What were the three pieces of evidence Wegener had to support his theory of continental drift?

A

Fossils, climate, geology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the super-continent that was made of all the current day continents?

A

Pangaea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What was Wegener missing which caused others to reject his hypothesis?

A

How the continents moved

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are underwater mountain ranges?

A

Mid-ocean ridges

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the process where new sea floor is made from molten rock rising through the crust?

A

Sea Floor Spreading

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where is the youngest sea floor located?

A

Closer to the mid ocean ridge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where does old ocean crust sink back into the asthenosphere?

A

Deep ocean trench

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the energy transfer by the movement of a material?

A

Convection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is a convection current in the mantle?

A

Hot, soft rock in the asthenosphere rises, cools, and sinks, then is heated and rises again

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the force that pulls crust back into the mantle?

A

Gravity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does the theory of plate tectonics state?

A

The Earth’s lithosphere is made up of huge plates that move over the surface of the Earth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly