Mod+4+-+Jacob+R

=Plate Tectonics= = __Convergent Boundaries-__ =
 * Convergent plates are masses of land colliding together to form mountain ranges.
 * About 55 million years ago Asia and India collied and formed the Himalayas which includes Mt. Everest, the tallest point on the Earth.
 * The water is under lapped by land and that melts to form volcanic eruption to form the Andes in South America.
 * They also form trenches miles deep like the Mariana Trench in the North Pacific near Japan. The Eurasian Plate and the Pacific Plate go past each other form the Mriana Trench, the deepest point on Earth.
 * They also form under water volcanos from the Eurasian Plate and Pacific Plate that form island arcs that make up the island of Japan.
 * They also have three main sub types. One is oceanic and continetal, which makes volcanos on the coast like Mt St Helens. Another is ocean and ocean which makes volcano islands like Hawaii. Lastly is continent and continent, which continents push together and makes massive mountain ranges like the Himalayas.

=__Transform Boundaries-__ =
 * Transform plates are plates that "grind" past each other.
 * An example is the San Andreas Fault in California. The Juan De Fuca plate and the North America are grinding past each other creating The San Andreas Fault.
 * Transform plates create massive earthquakes. Although the shaking last for a minute, the power is a deadly force.
 * In 1906, a huge 9.2 earthquake destroyed San Fransico because the San Andreas Fault was grinding past each other.
 * Another example is the Caymen Trench. It is the Caribbean and South America plate are sliding past each other creating this trench.
 * Most of the Transform plates are foundon the ocean floor.
 * Another plate is the Cocos Plate. It is moving away from the Pacific plate and crashing into the Caribbean plate.

=Divergent Boundaries-=


 * Divergent plates are plates moving away from each other.
 * An example is the "Giant Crack" in Africa. It is moving away and forming a new sea.
 * It is formed from giant troughs that are being tugged from each other.
 * Also the Arabian and African plate are moving away and making the Red Sea.
 * While the plates and moving away from each other volcanos rise along the seam of where they are being spread.
 * A singe mid-atlantic ridge system connects the oceans making the longest mountain ridge in the world.
 * It widens the basins and renews the ocean floors.

= =

Citations-


 * "Your source of science you use." recovery.gov, 2 Oct. 2009. Web. 18 Nov. 2009. .


 * Webmaster. "Caribbean Plate." What on Earth, 18 Nov. 2009. Web. 18 Nov. 2009. .

> Michellelovespink26,. //Under a volcano //. 2009. //Flickr //. Web. 3 Nov. 2009. <[]>.
 * "Plate Tectonics." Science and Space. National Geographic, 10 Sep. 2009. Web. 18 Nov. 2009. .
 * //Convergent Plate Boundary: crustal generation and destruction //. Encyclopedia Britannica. //Encyclopedia Britannica // . Web. 4 Nov. 2009. <[]>.
 * //Divergent Boundary //. NASA. //Why isn't the earth perfect //. Web. 4 Nov. 2009. <[]
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 * //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 14px;">Transform Boundary //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 14px;">. NASA. //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 14px;">Why isn't the earth perfect //<span style="font-family: Arial,Helvetica,sans-serif; font-size: 14px;">. Web. 4 Nov. 2009. <[]>.