6.1 MODELS OF THE EARTH Flashcards
1
Q
Crust
A
- Solid
- Made of different types of rock
- Does not flow
2
Q
Mantle
A
- Solid
- Flows slowly
3
Q
Outer core
A
- Liquid
- Mainly iron and nickel
4
Q
Inner core
A
- Solid
- Mainly iron and nickel
5
Q
Evidence about the structure of the Earth: Rocks
A
Scientists observed rocks on the surface of the Earth, rocks under oceans and rocks brought to the surface by volcanoes
6
Q
Evidence about the structure of the Earth: Earthquakes
A
In 1909, Andrija Mohorovičić realised that the shock waves came through two different layers, crust and mantle.
In the 1930s, Inge Lehmann discovered the solid inner core
7
Q
Evidence about the structure of the Earth: Mines
A
Mining engineers found that temperature increases as you go deeper to the core
