Plate Tectonics (Earth Science) Order Now!

225 Million years ago, all of the continents of today were a single landmass or super continent known as Pangaea. How is it that our world became the way it is today?

Plate tectonics is a theory that has revolutionized our understanding of the Earth. The theory unified many distinct branches of science that study the Earth, including paleontology and seismology. Together, these branches have provided answers to questions about the continents, earthquakes, volcanoes, and mountain ranges.

In 1912 Alfred Wegener developed a theory called, the continental drift. His theory contends that earth’s 20 different known plates are not in a fixed position but, in fact, have drifted apart over many years. One hypothesis that scientists accepted is the idea that the seafloor is spreading and how this can account for the movements of the continents as well as the changes in the size of the oceans.

As scientists learn more and more about plate tectonics and the movement of the plates, perhaps we can develop ways to predict or prevent natural catastrophes that these destructive forces cause.

Approximate Running Time: 17 minutes (p0702)

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