Chapter 7, Earth's Moving Crust
Order by
20 terms
Terms | Definitions |
|---|---|
 the underground point where an earthquake strikes | focus |
| earth's hard, cool outer layer | crust |
| the vibration that spreads from the focus after an earthquake strikes | seismic wave |
| source of power from below Earth's surface | geothermal energy |
| the central opening of a volcano through which magma may escape | vent |
| the study that concerns giant plates of Earth's crust that move about the planet | plate tectonics |
| magma that escapes from a volcano and flows over the surgace | lava |
| a sensitive device that detects the shaking of the Earth's crust | seismograph |
| the scale that measures the magnitude of an earthquake | Richter |
| layer of hot, molten rock that lies below the surface | mantle |
| earthquakes often occur at these boundaries between tectonic plates | transform |
| these giant waves form when an earthquake shakes the ocean floor | tsunamis |
| twisted layers of rock is evidence that Earth's crust is | moving |
| volcanoes are most likely to form along the boundaries of these | tectonic plates |
| tectonic plates move because of this type of current in Earth's mantle | convection |
| which natural disaster offers the best glimpse of Earth's mantle | volcano |
| the name for the large supercontinent which existed millions of years ago | Pangaea |
| what theory explains the ridges and trenches that form in the ocean | sea-floor spreading |
| what type of wave causes Earth's crust to move up and down, or from side to side | surface |
| if you were standing over this you would be the first person to feel the ground shaking in an earthquake | epicenter |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.
Set Champions
Scatter Champion
14.9 secs by falconburger
Space Race Champion
23,320 points by crazygracie0