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science ch. 6
6
| Question | Answer |
|---|---|
| Stress | Something that happens when presser is put on something |
| Tension | When press builds up |
| Compression | Squeezes the rock |
| Shearing | Two rocks sliding pass each other |
| Normal fault | Rock at an angle |
| Hanging wall | The rock that lies above the fault |
| Footwall | The rocks that lie below the hanging wall |
| Reverse fault | Rocks that push together |
| Strike - slip fault | Plats move past each other |
| Anticline | A fold rock that bends upward |
| Syncline | A fold rock that bends downward |
| Plateau | Large area of flat land. |
| Earthquake | When the ground shakes valiantly |
| Focus | The area under stress |
| Epicenter | Where the quake started |
| P wave | The first wave to come |
| S wave | The next one to come |
| Surface wave | P & s waves come to the surfaces |
| Mercalli scale | The way to rate quakes |
| Magnitude | How bad the quake was |
| Richter scale | The scale that measures quakes |
| Seismograph | How seismic wavers are measured |
| Moment magnitude scale | A system that estimates how big a quake will be |
| Seismogram | Records seismic waves |
| Friction | When two things rub each other |
| Liquefaction | Ground becomes a liquid |
| Aftershock | What happens after a quake |
| Tsunami | Water moved by a quake |
| Base-isolated building | Things used to make buildings safe in a quake |