Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geography > Restless Earth: Tectonic Plates > Flashcards

Restless Earth: Tectonic Plates Flashcards

You may prefer our related Brainscape-certified flashcards:
U.S. Geography flashcards World Geography flashcards
0
Q

What is the core made of?

A

Solid iron and nickel

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

What are the four layers of the earth in order? (outer layer towards the most inward layer)

A

Crust
Outer core
Inner core
Mantle

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

What are two characteristics of the mantle?

A

Semi molten rock

moves slowly

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

How thick is the earth crust?

A

20km

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

What are the two types of plates the earths crust is divided into?

A

Continental

Oceanic

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

What are the characteristics of continental crust?

A

Thicker
Less dense

(Than oceanic)

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

What are two characteristics of oceanic plates?

A

Thinner
More dense

(Than continental crust)

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

Why do the plates move?

A

As the mantle underneath is moving them

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

What is the area where two plates meet?

A

Boundaries or

Plate margins

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

What are the three types of plate margin?

A

Destructive
Constructive
Conservative

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

Destructive plates are where….

A

…two plates are moving towards each other

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

Where is an example of a destructive plate margin?

A

East Coast of Japan

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

What happens during the collision of a destructive margin?

A

Oceanic and continental plate/ two continental plates
Oceanic plate forced down into mantle and destroyed
Creates volcanoes and ocean trenches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is an ocean trench?

A

Very deep sections of the ocean floor where the ocean plate goes down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How are constructive margins formed?

A

Two plates move away from each other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where is an example of a constructive margin?

A

Mid-Atlantic ridge

16
Q

What happens during a constructive margin collision?

A

Magma rises from the mantle to fill the gap and cools creating new crust

17
Q

What is magma?

A

Molten rock

18
Q

Where is an example of a conservative plate margin?

A

West coast of the USA

19
Q

What happens during a conservative plate collision?

A

Two plates move sideways past each other
Same direction
Different speeds

Geography (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions