science vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Stress | a force that acts on rock to change its shape or volume
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| Tension | a stress force that pulls on the crust
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| Compression | a stress force that squeezes rock until it folds or breaks
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| Shearing | stress that pushes rock in two opposite directions
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| Normal Fault | the fault is at an angle, the hanging wall is pushed up the footwall
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| Hanging Wall | the block of rock that lies above the angle of the fault
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| Footwall | the block of rock that lies below the angle of the fault
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| Reverse Fault | the fault is at an angle, the hanging wall is pushed up the footwall
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| Strike-Slip Fault | the rocks on either side of the fault slip past each other sideways
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| Anticline | a fold in rock that bends upward into an arch
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| Syncline | a fold in rock that bends downward to form a valley
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| Plateau | a large area of flat land elevated high above sea level
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| Earthquake | the shaking and trembling that results from the movement of rock beneath earth's surface
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| Focus | the area beneath Earth's surface where rock under stress breaks, triggering an earthquake
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| Epicenter | the point on the surface directly above the focus
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| P wave | primary waves, seismic wave that compress and expand the ground
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| S wave | secondary waves, seismic wave that vibrate from side to side as well as up and down
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| Surface wave | seismic wave that forms when P and S waves reach the surface
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| Richter Scale | a rating of an earthquake's magnitude based on the size of the earthquake's seismic waves
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| Seismograph | an instrument that records and measures seismic waves
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Created by:
sammymudd
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