Hw Due 16th January

Question 1

Oceanic crust

Answer 1

This is much thinner usually 6-8km thick. It’s made of igneous rock

Question 2

Continental crust

Answer 2

Forms the la;d, mostly granite. 30-50km thick

Question 3

Mantle

Answer 3

Mantle makes up 84% of earths volume, 35-2980km under surface
Temperatures from 200-4000 Celsius

Question 4

Core

Answer 4

1500miles thick, extremely hot between 4000-5000 degrees Celcius. 2900km below the earths surface

Question 5

Asthenosphere

Answer 5

Layer of the upper mantle, mechanically weak, below the lithosphere

Question 6

Lithosphere

Answer 6

Top of upper mantle and the lower crust, the upper 100km of the earth