Convection+effecting+the+mantle

http://www.mantleplumes.org/Convection.html this website shows how what is in the earth, affects the crust and layers of the earth.

http://www.windows2universe.org/earth/images/convection.gif

media type="youtube" key="PdWYBAOqHrk" height="390" width="640" http://www.youtube.com/watch?v=PdWYBAOqHrk This is a cool video that shows how the hot fluids in the earth break and crack plates of the earth.