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Science Study Guide
| Term/Questions | Definition/Answer |
|---|---|
| How does stress in the crust change Earths surface? | Tension, compression , and shearing work over millions of years to change the shape and volume of rock. |
| Where are faults usually found, and why do the form? | Most faults occur along plate boundaries, where the force s of plate motion push or pull the crust so much that the crust breaks. There are three main types of faults: normal faults, reverse faults, and slip-strike faults. |
| What land features result from the forces of plate movement? | Over millions of years, the forces of plate movement can change a flat plain into land forms produced by folding, stretching , and uplifting Earths crust. These land forms include anticlines, synclines, folded mountains, fault-block mountains, and plateau |
| How does the energy of an earthquake travel through earth? | Seismic waves carry energy from an earthquake away from the focus , through Earths interior, and across the surface . |
| What are the scales used to measure the strength of an earthquake? | There are three commonly used methods of measuring earthquakes : the Mercalli scale, the Richter scale, and the moment magnitude scale. |
| How do scientists locate the epicenter of an earthquake? | Geologists use seismic waves to locate an earthquakes epicenter. |
| How do seismographs work? | Seismic waves cause the seismographs drum to vibrate. But the suspended weight with the pen attached moves very little. Therefore the pen stays in place and records the drums vibrations. |
| How do geologists monitor faults? | To monitor faults, geologists have developed instruments to measure changes in elevation, tilting of the land surface, and ground movements along faults. |
| How is seismographic data used? | Seismographs and fault-monitoring devices provide data used to map faults and detect changes along faults. Geologists are also trying to use these data to develop a method of predicting earthquakes. |
| How do geologists determine earthquake? | Geologists can determine earthquake risk by locating where faults are active, where past earthquakes have occurred, and where the most damage was caused. |
| What kinds of damage does an earthquake cause? | Causes of earthquake damage include shaking, liquefaction, aftershocks, and tsunamis. |
| What can be done to increase earthquake safety and reduce earthquake damage? | |
| How is seismographic data used? | |
| How do geologists determine earthquake? | |
| What kinds of damage does an earthquake cause? | |
| What can be done to increase earthquake safety and reduce earthquake damage? |
Created by:
makirae10
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