Structure of the earth

Question 1

Crust

Answer 1

Rocky outer layer 8km to 40km thick
Made of huge pieces of land called tectonic plates which fit together like a huge jigsaw puzzle. The crust is mined by humans for resources

Question 2

The mantle

Answer 2

Semi solid layer, thickest layer and is made of semi solid rock that moves very slowly like a liquid.
The tectonic plates float on top of the mantle meaning they both move at the same time

Question 3

Core

Answer 3

Made of iron and a smaller amount of nickel. The inner core is solid and the outer core is liquid. The two metals in the core, iron and nickel are both magnetic which gives the Earth its magnetic field

Question 4

What is the troposphere

Answer 4

The lowest layer of the earths atmosphere and also where nearly all weather conditions take place.

Question 5

The most common element in the earth’s atmosphere

Answer 5

Nitrogen 78

Question 6

2nd most common

Answer 6

Oxygen 21

Question 7

3rd most common

Answer 7

Argon 1

Question 8

Least common

Answer 8

Carbon dioxide 0.04