Term
| What was the worse volcanic eruption in US history? |
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Definition
Mt. St. Helens. It destroyed 200 square miles of forest and killed over 60 people.
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Term
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Definition
| A scientist that studies volcanoes. |
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Term
| The volcanologist that was killed while studying Mt. St. Helens? |
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Definition
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Term
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Definition
| opening and mountain of rock in the earth from which lava, gas, rock and ash erupt. |
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Term
| How many active volcanoes are there? |
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Definition
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Term
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Definition
1. Active
2. Dormant
3. Extinct |
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Term
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Definition
| Heat and pressure in the Earth pushes plates together. |
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Term
| What are the 3 parts of the volcano? |
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Definition
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1. Volcanic form 2. Chimney 3. Magma reservoir |
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Term
| Where is volcanic and earthquake activity the greatest? |
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Definition
| Along the edges of rock plates. |
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Term
| Where are the most volcanoes? |
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Definition
| Along the ridge of the Pacific Ocean |
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Term
| Volcanoes formed 2 sets of islands. Name them. |
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Definition
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Term
| All volcanoes release _____and _____ but not all produce _______. |
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Definition
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Term
| Volcanic ash can make what good product? |
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Definition
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Term
| Krakatoa killed how many people? |
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Definition
40,000 people in Indonesia
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Term
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Definition
| tiny particles of volcanic rock that are released during an eruption |
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Term
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Definition
| Tube in a volcano by which lava travels upward and to the surface |
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Term
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Definition
| Bowl shaped hole in the earth or at the volcanoes opening |
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Term
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Definition
| Event which causes a great amount of damage from property and lives |
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Term
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Definition
| Volcano that isn't erupting but can erupt again |
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Term
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Definition
| Powerful release of ash, dust, gas and steam from an active volcano |
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Term
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Definition
| No longer existing or active |
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Term
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Definition
| Melted rock that comes out of a volcano and later hardens |
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Term
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Definition
| Melted rock within the earth |
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Term
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Definition
| Instrument used to record the direction strength and duration of an earthquake |
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Term
| Which volcano eruption caused the year without summer? |
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Definition
| Mount Tambora in Indonesia |
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