7.1 Structure Of The Earth Flashcards
What is the surface layer of the earth called?
Crust
What is the crust?
A very thin layer that varies in thickness (between 5km and 70km)
What is the mantle?
Almost entirely solid but parts of it can flow very slowly
What layer is the mantle under?
Under the crust
What is the earths diameter?
12,800km
How big is the diameter of the earths core?
About half the size of the earths diameter
What 2 metals make up most of the earths core?
- iron
* nickel
What is the state of the outer core?
Liquid
What is the state of the inner core?
Solid
How deep is the mantle?
3000km
What is the earths atmosphere?
The air that surrounds the earth
Where is most of the air on earth?
Within 10km of the surface
Where is most of the atmosphere on earth?
Within 100km of the surface
Name the layers of the earth that are solid
- inner core
- mantle
- crust
Where do we get all of our raw materials?
The crust, oceans and atmosphere
