BCJS+1.5

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=Chapter 1.5=

Vocabulary:

 * Plates:** separate sections of the lithosphere that are broken into pieces
 * Scientific Theory:** a well tested concept that explains a wide range of observations
 * Plate Tectonics:** the geological theory that states that pieces of the Earth's lithosphere are in a constant, slow-motion, driven by conduction currents in the Mantle
 * Faults:** break in Earth's crust where rock have slipped past each other
 * Transfer Boundary:** a boundary where two plates slip past each other, making a fault
 * Divergent Boundary:** a boundary where two plates move apart, making a rift valley
 * Rift Valley:** the area where it is between a divergent boundary
 * Convergent Boundary:** a boundary where two plates crash into each other, creating a mountains

Theory of Plate Tectonics

 * **The Theory of Plate Motion**
 * Wilson observed cracks in lithosphere
 * Wilson combined sea-floor spreading, subduction, and continental drift
 * **Plate Boundaries**
 * **Transform Boundary**
 * No building or destruction of rock
 * Rock slips past each other
 * **Divergent Boundary**
 * Where two plates move apart
 * Product is rift valley
 * **Convergent Boundary**
 * Where two plates collide
 * May cause product of mountains or subduction
 * **The Continents Slow Dance**
 * Plates move one to ten centimeters per year