The Earths Structure

Question 1

Parts of earth

Answer 1

Inner core
Outer core
Mantle
Crust

Question 2

Inner core

Answer 2

Made of iron and Nickel

Solid

Question 3

Outer core

Answer 3

Iron and nickel

Molten/liquid

Question 4

Mantle

Answer 4

Made of several layers of rock

Semi molten or molten but rigid at crust

Question 5

Crust

Answer 5

Made of solid rocks and materials

2 zones- oceanic and continental

Question 6

Oceanic vs continental crust

Answer 6

Oceanic is 6-10km deep where as continental is 30-60km deep

Oceanic is heavier than continental

Oceanic is make of basalt where as continental is made of granite

The minerals in oceanic are silica and magnesium (sima) but the minerals sin continental are silica and aluminium (sial)

Question 7

Lithosphere

Answer 7

Crust and upper part of mantle, it’s solid and doesn’t flow

Question 8

Asthenosphere

Answer 8

Region just below lithosphere, partially liquid so crust can slide on it

Question 9

Internal forces changing earth

Answer 9

Moving magma

Question 10

External forces changing earth

Answer 10

Denudation

Question 11

Moho line

Answer 11

Boundary between the earths crust and mantle