The Crust                                                                        

The  skin  of  an  apple  is  a  model  of  the  earth's  crust .It is the thiner layer amonge all three earth’s layer so that has only about 25 miles (32 kilometers) coarse under the continents (continental crust and about 5-3 miles (8 kilometres) under the oceans (oceanic crust) The temperatures of this layer is differ from air temperatures about 1600 degrees Fahrenheit (870 degrees celcius) in the  profoundest  parts of the  crust . At 1600 degrees Fahrenheit rocks begin to melt whereas you can back  a  loaf  of  bread  in  your  oven  at  350  degrees Fahrenheit.

Plates are brocken pieces of the Earth in which buoy on the soft plastic mantel locating beneath the crust. Sometimes they build up and  stick  pressure,  but  these  plates  usually  move  along slowly.This movements  increase the pressure amonge the rocks ande cause a sudden fracture or shock; earthquake occures consequently!! Pay  attention  how  this  thin    crust  of  the  Earth is  in comparison to the other layers.The ocean plates and seven continents buoy across the mantle that is made of hotter and denser material.

The  crust  is  made of  two  rock  types  including basalt  and  granite .That  is  made  mostly  of  granite  are  the  continental  crust and That is made of spread undeoceanic volcanic lava rocks,  called basalt is oceanic crust.The granite rock of the  continental  plates  are much lighter than the Basaltic rocks For the reason of this the  continents ride on the denser oceanic plates. A  hard brittle  rocky zone that  is  make  up  the  crust  and  the upper mantle together called Lithosphere. Asthenosphere is the layer below the  Lithosphere, with asphalt-like consistency . In fact the part of the mantle  that  moves  and  flows  the  plates  of  the Earth  is  Asthenosphere.

The Mantle                                                                      

The layer located under the sima is called mantle.The mantle is the largest layer of about 1800 miles thick .The mantle is made of a very hot dense rocks . This  layer  runs  like  asphalt  under a heavy weight. It flows  due to great  temperature difference between the top to the bottom of mantle.The reason that the plate of the earth is moving is movement of the mantle.The temperature varies from 4000 degrees Fahrenheit near the bottom to about 1600 degrees Fahrenheit at the top in the mantle .

Outer Core                                                                         

The core of the Earth is the same a ball of very hot metals changing from  4000 degrees  Fahrenheit to about 9000 degrees Fahrenheit.The metals in outer core are all in the liquid state because the outer core is so hot.The outer core is located about 1400 miles thick and about 1800 miles beneath the crust.The outer core is made of the iron and melted nickel.

Inner Core                                                                  

The metals in Inner core are squeezed together and are not able to move about as liquid because of the temperatures and pressures so great, but they are had to move in place like a solid.The inner core begins about 800 miles thick and about 4000 miles beneath the crust.The pressures are 45000000 pounds per square inch and the temperatures perhaps reach 9000 degrees Fahrenheit .It was 3000000 times the pressure on you at sea level!!!