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CCMS Science 7 Nov
Mr. Brown's Science Test
| Question | Answer |
|---|---|
| Continental Drift | The hypothesis that the continents slowly move across the Earth's surfafce |
| Theory of Plate Tectonics | The idea the the earth is made of plates that are in constant motion |
| Fault | A break in the Earths' crust where slabs of rock slip past each other |
| Transform Boundary | A plate boundary where two plates move past each other in opposite directions |
| Divergent Boundary | A plate boundary where two plates move away from each other |
| Convergent Boundary | A plate boundary where two plates move toward each other |
| Earthquake | The Shaking that results from the movement of rock beneath the Earths' surface |
| Stress | A force that acts on rock to change it's shape or volume |
| Shearing | Stress that pushes a mass of rock in opposite directions |
| Tension | Stress that stretches rock so that it becomes thinner in the middle |
| Compression | Stress that squeezes rock until it folds or breaks |
| Deformation | A change in volume or shape of the Earths' crust |
| Strike-Slip Fault | A type of fault where rocks on either side move past each other with little up or down motion |
| Normal Fault | A type of fault where the hanging wall slides downward |
| Reverse Fault | A type of fault where the hanging wall slides upward |
| Epicenter | The point on the Earths' surface directly above an earthquakes focus |
| Seismic Waves | A vibration that travels through the Earth carrying the energy released during an earthquake |
| P Waves | A type of seismic wave that compresses and expands the ground |
| S Waves | A type of seismic wave that moves the ground up and down, side to side |
| Surface Wave | A type of seismic wave that forms when P waves and S waves reach Earths' surface |
| Magnitude | The measurement of an earthquakes' strength based on seismic waves and movement along faults |
| Richterscale | A scale that rates seismic waves as measured by a particular type of mechanical seismograph |
| Seismograph | A device that records ground movement caused by seismic waves as they moved through the Earth |
| Pangea | Over 200 billion years ago all the continents were formed into a single supercontinent before breaking up and drifting to their present locations |
Created by:
mcamino
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