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3:1 Volcanoes
Volcanoes and plate tectonics
| Term | Definition |
|---|---|
| volcano | erupting vent through which molten rock surfaces; creating and destructing mountains |
| magma | Molten rock beneath the Earth's surface. |
| lava | magma that flows out onto Earth's surface |
| Ring of fire | Pacific Ring of Fire (or just The Ring of Fire) is an area where large numbers of earthquakes and volcanic eruptions occur in the basin of the Pacific Ocean. |
| island arc | A string of islands formed by the volcanoes along a deep ocean trench |
| hot spot. | An area where magma from deep within the mantle melts through the crust above it |