Brainscape's Knowledge GenomeTM

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


See full index

Year 8 Geography > Plate Tectonics > Flashcards

Plate Tectonics Flashcards

You may prefer our related Brainscape-certified flashcards:
U.S. Geography flashcards World Geography flashcards
1
Q

How thick is the crust?

A

8.65 KM thick

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

What is the crust?

A

The outer layer of the earth that you live on. It’s a thin layer of rock.

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

What is the mantle?

A

It forms about half of the earth and is made of heavy rock. But below the rock is hot and soft like plastic, it’s liquid in some places

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

What is the upper mantle made of?

A

Hard rock

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

What is the lower part of the mantle made of?

A

Soft rock

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

What is the outer core made from?

A

Liquid which is iron and nickel

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

What is the inner core made from?

A

It’s solid a And iron and nickel

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

How many layers is earth made of?

A

4

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

What are plates?

A

The outer layers broken pieces

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

What crust is the main land?

A

The continental

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

How thick is the continental crust?

A

35 KM

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

What is the ocean floor made of?

A

The oceanic crust

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

What is thinner the continental crust or the oceanic crust?

A

The oceanic crust

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

What is the oceanic crust covered in?

A

A thin layer of ocean sediments

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

How thick is the oceanic crust?

A

5 KM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Where does the magma which feeds volcanoes come from?

A

The mantle

17
Q

What is the hottest part of earth?

A

The core

18
Q

How hot is the mantle?

A

1600*c

19
Q

What is the upper mantle often described as?

A

Bendy plastic

20
Q

How hot is the upper part of the mantle?

A

600-800*c

21
Q

How thick is the mantle?

A

2800KM thick

22
Q

How thick is the outer core?

A

2100KM thick

23
Q

How hot is the outer core?

A

3000*c

24
Q

How thick is the solid inner core?

A

1300KM thick

25
Q

How hot is the inner core?

A

5000*c

26
Q

What is the core?

A

Mainly iron, mixed with a bit of nickel. The outer core is liquid the inner core is solid

27
Q

Where do earthquakes and volcanoes occur?

A

On or near plate boundaries

28
Q

What are the 3 different plate boundaries?

A

Convergent
Divergent
Conservation

29
Q

What is a divergent plate boundary?

A

When 2 plates have been pulled apart. This is how volcanoes and earthquakes happen

30
Q

How many types of convergent plate boundaries are there?

A

2

31
Q

What is one type of convergent plate boundaries?

A

When two plate boundaries (oceanic and continental) crash together and cause earthquakes and or volcanoes

32
Q

What is the other type of convergent

A

When two plates meet and cause earthquakes and or volcanoes but they also make mountains

Year 8 Geography (2 decks)

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