EarthQuakes/Volcanos
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each of the black spaces below before clicking
on it to display the answer.
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| Crust | Outermost, hard solid rock
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| Mantle | 80% of the earth's volume, denser than crust
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| Innercore | Solid iron
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| Outercore | Liquid molten rock and metal
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| Lithosphere | Crust and uppermost solid mantle
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| Continental Drift | Theory taht the earth's surface is made up of plates that are moving
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| Earthquakes | Shaking and vibration at the earth's surface
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| Siesmic waves | Waves generated by energy released because of displacement of the crust or any movement of the Earth's crust
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| Focus | the exact point where the slippage or breakage takes place
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| Epicenter | Point directly above the focus
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| P waves (Primary) | Longitudial waves, Moves the fastest, back and forth motions
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| S waves (secondary) | Transverse waves, moves slowly, up and down motions
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| Surface waves | Both P and S waves, causes the most damage
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| Subduction | Denser crust dives under less dense crust
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| Mid-Ocean Ridge | Mountain ranges at divergent boundaries
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| Sea Floor SPreading | Plate tectonics
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| Plate tectonics | Moving plates (7)
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| Convergent | Plates comming together
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| Divergent | Plates moving away from each others
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| Transform | Sliding past
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| Magma | Molten rock inside Earth
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| Seismology | Study of earthquakes, their orgin, energy and prediction
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| Seismograph | Machine that measures seismic waves
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| Seismogram | The paper recorded on
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| Seismograph Station | Area where earthquakes are recorded with a seismogram
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| Ritcher Maginitude Scale | Assings a singel number to quantify the amount of seismic engergy released by an earthquake
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| Volcano | An opening in the earth's crust where magma is released
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| Lava | hot liquid magma, when it reaches the surface through a vent
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| Vent | Opening where the gas, magma, is released
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| Shield Volcano | Large, gently sloping mountain
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| Composite Volcano | Made of alternating layers of ash, cinders, and lava
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| Cinder cone | Smallest and most abundant of volcano types
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| Seamount | Underwater volcano/compsite
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| Ring of Fire | A zone around the apcific Ocean where oceanic plates collide with Continetal plates
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| Hot Spots | weak spots in oceanic crust
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