7.1 Structure Of The Earth Flashcards Preview

GCSE Chemistry 1.7 Our Changing Planet > 7.1 Structure Of The Earth > Flashcards

Flashcards in 7.1 Structure Of The Earth Deck (16)
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1

What is the surface layer of the earth called?

Crust

2

What is the crust?

A very thin layer that varies in thickness (between 5km and 70km)

3

What is the mantle?

Almost entirely solid but parts of it can flow very slowly

4

What layer is the mantle under?

Under the crust

5

What is the earths diameter?

12,800km

6

How big is the diameter of the earths core?

About half the size of the earths diameter

7

What 2 metals make up most of the earths core?

•iron
•nickel

8

What is the state of the outer core?

Liquid

9

What is the state of the inner core?

Solid

10

How deep is the mantle?

3000km

11

What is the earths atmosphere?

The air that surrounds the earth

12

Where is most of the air on earth?

Within 10km of the surface

13

Where is most of the atmosphere on earth?

Within 100km of the surface

14

Name the layers of the earth that are solid

•inner core
•mantle
•crust

15

Where do we get all of our raw materials?

The crust, oceans and atmosphere

16

Why are our raw materials limited?

The raw materials we depend on come from the crust, oceans and atmosphere