Geography-Earth core


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  • We are going to make a journey to the centre of the Earth and we going to go through all of the four layers.
  • There are four layers of the Earth, the crust, then the mantle, then the liquid outer core and finally the solid inner core.
  • First we enter the crust which is a layer of rock that is below the ground beneath us.
  • Next we go into the mantle, which is a magma based substance that is scorching and it is between the crust and the liquid core.
  • Things are now getting really hot with the temperature at 4000-5000ºC. The liquid outer core is mainly made of iron, some nickel and about 10% sulphur and oxygen.
  • The the solid inner core. The solid inner core has a temperature of around 5400 °C, It is said to be approximately the same temperature as the Sun. It is made of iron and nickel.
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