4th quarter Science part 2

What are the 3 layers of the earth?

Identification:

It is the hottest and innermost layer of the earth

(a)  

Identification:

It is solid due to very high pressure and the outer core is molten with minor elements like silicon, oxygen and sulfur. This layer is composed of solid iron and nickel.

(a)  

Identification:

This layer is second largest layer made up of liquid iron and nickel.

(a)  

Identification:

This layer stretches up to 3000 km which makes it the thickest layer of the Earth.

(a)  

Identification:

It is the outer most and thinnest layer of the earth comprises solid rock and is divided into tectonic plate.

(a)  

Identification:

This layer of the Earth is where earthquakes primarily occur.

(a)  

Identification:

The boundary between the crust and upper mantle.

(a)  

Identification:

The semi-fluid layer found in the mantle.

(a)  

Identification:

It tends to be much older than oceanic crust and it is the thickest crust

(a)