Earths Interior
Minerals
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Earth"s Structure
Rocks and the Rock Cycle
Plate Tectonics
Earthquakes
What do you know about the Earth?
Earth's Structure
The Earth has 3 main layers the Crust, Mantle and Core. The reason that the earth is divided into layers is because of the materials that make up each layer.
Pictures:
http://www.revisescience.co.uk/2011/images/Earth_structure.jpg
http://fionamariecarter.files.wordpress.com/2011/04/image004.jpg?w=510
Reference:
http://museumvictoria.com.au/melbournemuseum/discoverycentre/dynamic-earth/videos/earths-internal-structure/