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WAB Science 15
Science Ch. 15
| Question | Answer |
|---|---|
| ___ are cone-shaped mountains that eject lava and other materials. | volcanoes |
| A ___ is the surface of a break in a section of rocks. | fault |
| Another name for earthquake waves is ___. | seismic waves |
| The place inside Earth where the energy is an earthquake is centered is the ___. | focus |
| The instrument used to record earthquake activity is a ___. | seismograph |
| The ___ of an earthquake is the point on the surface of Earth directly above the focus. | epicenter |
| The ___ of an earthquake is based on the amplitude of the seismic waves. | magnitude |
| An undersea earthquake may porduce a ___. | tsunammi |
| Buildings constructed to withstand most earthquakes are said to be ___. | seismic safe |
| ___ is magma that has flowed onto Earth's surface. | lava |
| The ___ is divided into about 13 major plates. | lithosphere |
| ___ are long cracks produced at divergent plate boundaries. | rifts |
| The ___ scale measures the magnitude of an earthquake. | Richter |
| The seismic waves that do the most damage to structures and property during an earthquake are ___. | surface waves |
| An avalanche of glowing rocks flowing on a cushion of hot gases is called a(n) ___. | pyroclastic flow |
| ash and mudslidesCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to volcanoes |
| seismic safe construction techniquesCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to earthquakes |
| hot spotsCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to volcanoes |
| magnitudeCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to earthquakes |
| elastic reboundCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to earthquakes |
| riftCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to both earthquakes & volcanoes |
| tsunamiCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to earthquakes |
| tephraCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to volcanoes |
| tectonic platesCategory? related to earthquakes --- related to volcanoes --- related to both earthquakes and volcanoes. | related to both earthquakes & volcanoes |
| ___ volcanoes such as the Soufriere Hills volcano often form along subduction zones. | composite |
| Bits of rock or solidified lava that fall from the air after a volcanic eruption are called ___. | tephra |
| The type of volcanic eruption depends on the amount of gases and the composition of the ___. | magma |
| The largest volcanoes are ___ volcanoes, which produce basaltic lava. | shield |
| ___ eruptions occur when very fluid magma oozes from cracks in Earth's surface. | fissure |
| The Hawaiian Islands did not form at a boundary of tectonic plates, like most volcanoes, but over a ___. | hot spot |
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