Composition of Earth's layers

Question 1

What is the core

Answer 1

consists of iron and nickel
Temperature =6,200 degreed Celsius
Inner core is soldi 1,250 km thick
Outer core is semi moltent , 2,200 km thick

Question 2

What is the mantle

Answer 2

• consists of silicate rocks, rich in magnesium, making up 84%
  of earths volume
• 2,900km thick
• temperatures of 1000 degrees c near crust, 4000 degrees c
  near core
• Semi Molten

Question 3

What is the crust

Answer 3

Thin outer layer of the Earth consist of
- Oceanic crust, 6-10km thick, made of basaltic rock such as
silica and magnesium created into sima
- Continental crust, 70 km thick made of granite rock made up
of silica and alumni created into sail

Question 4

What is the lithosphere

Answer 4

The lithosphere is the rigid outer layer of the Earth consisting of the crust and soil outer most layer of the upper mantle

Question 5

What is the Moho discontinuity

Answer 5

The Moho Discontinuity is the boundary between the crust and the mantle

Question 6

What is the asthenosphere

Answer 6

A layer between the upper and mantle and the lithosphere