Tuesday, April 7, 2009

Plate Tectonics and Plate Boundaries

Plate tectonics is a theory that the Earth crust is divided into plates that move. These plates move at 1 cm per year, the rate of growing finernails.
Tectonics are divided into plates.
Each of the plates meet together at faults. At each fault there is something called a plate boundary. Plate boundaries are where plates meet together, but when two plates meet together, there are numerous things that could happen. There are different types of plate boundaries. There are 3 main types of plate boundaries- convergent boundaries, divergent boundaries, and transform boundaries.
Uh.....what?
Think of it this way.
You're drinking hot chocolate, and you enjoy it with marshmallows. The marshmallows float to the top. So the marshmallows are the Earth's crust, divided into plates, and the hot chocolate is the mantle(more on that later.).


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