Glencoe Science ch.7 Word Scramble
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| Question | Answer |
| Large vibrations that move through rock or other Earth materials | Earthquakes |
| when rocks strain and then break, the broken pieces snap back | elastic rebound |
| the surface of a break in a rock | fault |
| when strained rock's potential energy is released, it moves outward from the fault in waves | seismic waves |
| the point inside Earth where movement along a fault first occurs and energy is released | focus |
| the point on Earth's surface located directly above the focus | Epicenter |
| instrument that records an earthquakes seismic waves. | seismograph |
| when an earthquake occurs on the ocean floor, the sudden movement pushes against the wader and creates powerful waves that can travel thousands of kilometers | tsunamis |
| cone-shaped hills or mountains formed by denser surrounding rock | volcanoes |
| bits of rock or solidified lava dropped from the air after an explosive eruption | tephra |
| basaltic lava which flows easily | shield volcanoes |
| high gas content in the magma | cinder cone volcanoes |
| volcanoes made of alternating layers of lava and tephra | composite volcanoes |
| large rising bodies of magma force their way through earth's crust, not at plate boundaries | hot spots |
| where plates converge and denser plates subduct, or are forced underneath less dense plates | convergent plate boundaries |
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spaztard
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