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=The Theory of Plate Tectonics=

Vocabulary

 * Plates** - the separate sections of the lithosphere
 * Scientific Theory** - a well tested concept that explains a wide range of observations
 * Plate Tectonics** - the geological theory that states that the Earth's plates are constantly in motion
 * Faults** - breaks in the Earth's crust where rocks have slipped past each other
 * Transform Boundary** - a place where two plates slip past each other, moving in opposite directions
 * Divergent Boundary** - the place where two plates move apart
 * Rift Valley** - a deep valley which forms along divergent boundaries
 * Convergent Boundary** - the place where two plates come together

A Theory of Plate Motion

 * ===Plate tectonics===
 * Driven by convection currents in the mantle
 * Convection currents rise in the asthenosphere and spread out in the lithosphere

Plate Boundaries

 * ===Transform Boundaries===
 * Earthquakes will occur along these boundaries
 * ===Divergent Boundaries===
 * Occur along the mid-ocean ridge
 * occurs on land
 * Rift valleys occur near divergent boundaries
 * ===Convergent Boundaries===
 * When 2 plates converge, they cause a collision
 * Brings oceanic crust and oceanic crust
 * Brings Continental crust and oceanic crust
 * Brings Continental crust and continental crust
 * Density determines which plate comes on top
 * creates mountain ranges

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