Learn about the Layers of the Earth http://www.thetech.org/exhibits_events/online/quakes/inside/
More information about Earth's Layers http://volcano.oregonstate.edu/vwdocs/vwlessons/lessons/Earths_layers/Earths_layers1.html
Find out about the structure of the Earth. http://scign.jpl.nasa.gov/learn/plate1.htm
Learn all about Plate Tectonics and how the plates move. http://www.thetech.org/exhibits_events/online/quakes/plates/
See Plate Tectonic animation http://www.ucmp.berkeley.edu/geology/tectonics.html
Good animations to show different types of zones where plates meet. http://www.msnbc.com/news/wld/graphics/quakes_dw.htm
More plate tectonics animations http://www.wwnorton.com/college/geo/egeo/animations/ch2.htm#5