Plate+Tectonics

media type="file" key="inourtime_20080124.ram"

If you need the plug in on mozilla to get real player follow [|this]

You can download the episode from [|here]

To describe the Structure of the Earth

http://www.learningdemo.com/noaa/lesson01.html - Structure of the Earth and plate tectonics

http://education.sdsc.edu/optiputer/teachers/earthlayers.html - layers of the Earth!