The earth is made up basically of three layers " Core, Mantle and Crust.

To find out more detailed information check out these web sites:

• http://mediatheek.thinkquest.nl/~ll125/en/struct.htm
• http://www.edu.pe.ca/southernkings/compositionch.htm
• http://www.uoguelph.ca/~sadura/esref/es0.html