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Volcanoes
| Term | Definition |
|---|---|
| Cinders | charred bits of rock and ashes |
| Crater | a bowl-shaped depression |
| Eruption | a volcanic explosion of lava or a large flow of lava |
| Volcano | a hole in the ground that lava comes through; a hill or mountain formed by the lava |
| Shield volcano | Volcano with low slope, built almost entirely of fluid lava flows. |
| Cinder cone volcano | Volcano with a steep slope, made of loose, grainy cinders |
| Composite volcano | Volcano made of alternating layers of ash and lava, most explosive eruption. |
| Caldera | Volcano where center falls into an empty magma chamber, can form a crater lake |
| Destructive | Spewing ash, sideways explosions, fires and mudflows are examples of how volcanoes can be _____. |
| Constructive | Creating hot springs, geothermal energy, enriched soil are examples of how volcanoes can be _____. |
| Active | A volcano that can erupt frequently. |
| Dormant | A volcano that is not currently active, but that may become active in the future. |
| Extinct | A volcano that is not likely to erupt again. |
| Magma | Molten rock beneath the earth's surface. |
| Lava | Molten rock on the earth's surface. |
| Viscosity | How thick or thin something is. |
| High Viscosity | Lava that flows slowly, covers small area, causes violent eruptions. |
| Low Viscosity | Lava that flows rapidly, covers large area, gases escape easily. |
Created by:
BTLanigan
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