I've totally been "geeking out" this week over this awesome plate tectonics video. Really, I think it's worth a watch!
This 5 minute video has footage from the National Geographic Channel show, Alien Deep. It shows how plates collide, and separate, and has a very cool animation of a Tharp-Heezen Map. Learn how the Earth is shifting below our feet: http://bit.ly/ZRNJtM
To see more videos from Alien Deep, check out our page here: http://education.nationalgeographic.com/education/alien-deep-education/?ar_a=1.