Journey to the Center of the Earth Webquest

Website 1: http://library.thinkquest.org/17457/platetectonics/1.php
Website 2: http://www.pbs.org/wnet/savageearth/animations/hellscrust/main.html
Website 3: http://www.mnh.si.edu/earth/main_frames.html
Website 4: http://aspire.cosmic-ray.org/labs/seismic/seismic.swf