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Vocab 1

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Geology   The study of the origin, history, structure and processes that shape earth  
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Outer Core   Only liquid layer  
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Inner Core   The innermost part of the earth solid ball its dense  
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Mantle   Between the crust and inner core it is the thickest layer  
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Crust   outer layer thinnest layer  
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Plate Tectonics   pieces of the crust fitting together like a jigsaw puzzle and are both oceanic and continental  
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Pangaea   A super continent created by all the worlds present landmasses  
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Theory of Continental Drift   The lateral movement of continents resulting from the motion of crustal plates  
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Divergent Boundaries   place where plates spread apart  
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Convergent Boundaries   place where plates meet  
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Transform Boundaries   place where plates slide past each other  
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Weathering   The breaking down of the lithosphere by the action of wind, ice, plants, animals, and chemical changes  
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Principle of Uniformity   The processes that have changed the Earth in the past still exist: the same processes are at work changing our world now  
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Mechanical Weathering   the process of the breaking down of rocks into smaller pieces  
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Chemical Weathering   the process that alters a rocks mineral compostion  
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Syncline   upward folds in rocks  
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Anticline   downward folds in rocks  
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Fault   where the crust splits  
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plateaus   flat areas that have been pushed above sea level by forces within the earth  
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epicenter   right above the focus most damage is caused  
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focus   the point where the earthquake starts  
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seismic waves   vibrations that travel out from the quakes focus in all directions  
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primary wave   waves that can move through solids, liquids, and gases Also comes first  
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Secondary wave   Waves that can move through only solids Comes second  
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Surface wave   Slowest wave  
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Volcano   Areas of the earths surface through which magma and volcanic gases pass  
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Lava   Magma that flows onto earths surface  
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Vents   An opening at the surface of the earth through which volcanic material passes  
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Magma chamber   A body of molten rock that feeds the volcano  
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Magma   Molten rock  
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Pyroclastic flow   Produces enormous amounts of hot ash, dust, and gases  
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Viscosity (Viscous)   Determined by if the magma is thick, runny, or sticky  
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Crater   A large and bowl shaped cavity on the surface of the earth or in the ground  
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Caldera   Is a caldron like or shaped feature usually formed by a collapse of land following a volcanic eruption  
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Rock cycle   A series of rock changes from one form to another  
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Erosion   The process which wind,water, ice and gravity transport soil and sediments from one location to another  
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Deposition   The process in which material is laid down  
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igneous rock   rocks formed by cooling of lava and magma  
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sedimentary rock   rocks formed through deposition and sediment in layers  
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metamorphic rock   rocks that was once another form by has changed to another under heat and pressure  
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extrusive igneous rock   rock that forms as a result of volcanic activity at or near the earth's surface  
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intrusive igneous rock   rock formed from the cooling and solidification of magma beneath the earth's surface  
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strata   layers of rock  
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Stratafication   the process in which sedimentary rocks are arranged in layers  
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index minerals   used to estimate temperature, depth, and pressure a rock undergoes metamorphism  
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foliated metamorphism   the texture of metamorphic rock in which the mineral grains are arranged in planes and bands  
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non-foliated metamorphism   the texture of metamorphic rock in which the mineral grains are not arranged in planes and bands  
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