Sample some of the following activities to learn more about geophysical cycles. There are 7 major tectonic plates on the earth. Each one of them is more than 1,000 miles wide. Visit them virtually. Each large plate touches 3 or more other plates.
None can move without affecting all of the others.
Scientists don't agree on how many smaller plates exist. Some of the smaller plates are less than 100 miles wide and may be difficult to detect. However, they think that there may be about 20 total plates. At Pangaea, you can step right from Brazil into Africa. Travel to New Madrid, Missouri to learn about a series of some of the most destructive earthquakes ever recorded in North America that occurred in 1811 and 1812.