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J - volcano
volcano vocabulary
| term | definition | example |
|---|---|---|
| Volcano | a mountain formed by the accumulation of material that has been forced out of the Earth's interior onto its surface. | Mount St. Helen's |
| volcanism | the process that causes chemicals, fertile soil, and minerals to be brought to the Earth's surface. | |
| vent | an opening from which lava and gasses from the Earth's interior may flow | |
| composite (or strato) volcano | a steep sided volcano made up of alternating layers of lava and rock particles | |
| cinder cone volcano | a steep-sided volcano made up of rock particles, dust, and ash that erupts explosively | Krakatoa, Indonesia |
| hot spots | areas in the Earth's plates where magma pushes through a weakness in the Earth's crust, usually forming a volcano | Hawaiian Islands |
| lava | molten material that has been forced through the Earth's crust, usually by a volcano | |
| pillow lava | lava cooled rapidly under water, has a rounded shape | |
| Ring of Fire | major earthquake and volcano zone that almost forms a circle around the Pacific Ocean | |
| shield volcano | volcano with gently sloping sides made up of layers of hardened lava | Mauna Loa, Hawaii |
| magma | the molten rock under the Earth's surface |
Created by:
Mrs.J
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