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