The Earth: Contents May Be Hot
29 04 2008High temperatures and pressures are normal inside the earth.
This happens because of the natural decay of radioactive elements.
This makes the rock so hot it becomes fluid and gas. This is called magma.
The structure of the earth
The earth is not the same all the way down.
The earth is made of many layers.
Starting at the outside they are
Crust (where we live) 0-35km
Upper mantle 35-60km
Mantle 60 – 2890km
A fluid outer core – 2890 – 5150km
A hard inner core – 5150 – 6350km
The crust and the upper mantle are the lithosphere.
