Earth Layers Flashcards
1
Q
Crust: made of…
A
Solid rock
2
Q
Crust: layer & length
A
Thin layer ( between 8 and 65km thick)
3
Q
Mantle: made of…
A
Semi-molten rock: magma. Up hard, lower down soft
4
Q
Mantle: layer & length
A
2900km thick
5
Q
Outer core: made of…
A
Liquid iron and nickel
6
Q
Outer core: temp
A
2nd hottest
7
Q
Inner core: made of…
A
Solid, iron and nickel
8
Q
Inner core: temp
A
Hottest part of earth: 6,000 Celsius
9
Q
Layer order; in to out
A
Inner core, Outer core, mantle, crust
10
Q
Crust: definition
A
Outer layer of the Earth
11
Q
Plate: definition
A
A section of the Earth’s crust
12
Q
Core: definition
A
The hottest two layers at the centre of the Earth
13
Q
Mantle: definition
A
The dense, mostly solid layer between the outer core and the crust
14
Q
Convection currents: definition
A
The circular currents of heat in the mantle
