Term
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Definition
| Describe what most of the Earth is made of. |
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Term
| the higher the silica content, the stickier (pastier) the lava |
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Definition
| How does the amount of silica in lava affect the viscosity (ability to flow)? |
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Term
| it traps gases and builds pressure in the magma chamber |
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Definition
| Why does thick, sticky lava cause explosive eruptions? |
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Term
| low-silica lava (basalt lava) |
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Definition
| The Hawaiian islands formed from what type of lava? |
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Term
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Definition
| These are areas where magma collects under a volcano. |
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Term
| ash, cinder, bombs, blocks |
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Definition
| If you were to order the rock fragments that shoot from volcanoes from smallest to largest, what would the order be? HINT: Fragments include cinder, ash, blocks and bombs |
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Term
| at tectonic plate boundaries |
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Definition
| Where do most volcanoes form? |
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Term
| Kilauea (Hawaii) it is a shield volcano |
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Definition
| What is the world’s largest volcano (total volume)? What type of volcano is it? |
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Term
| composite volcano (stratovolcano) |
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Definition
| This type of volcano (excluding supervolcanoes) produces explosive, violent eruptions. |
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Term
| uplift of the ground, gas emissions, and water temperatures around the volcano |
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Definition
| Scientists monitor these 3 things to predict a volcanic eruption. |
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Term
| Because of the dense population living in the blast zone |
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Definition
| Why is Mt. Vesuvius currently the “most threatening volcano in the world?” |
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Term
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Definition
| This is the most dangerous part of an explosive eruption. |
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Term
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Definition
| If you breathe this in, it could turn to a concrete-like substance in your lungs. |
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Term
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Definition
| The entire island of Krakatau blew up in 1883 because of this part of an explosive eruption. |
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Term
| tremendous destruction, huge rock fragments may be ejected causing fires, thick ash on rooftops may collapse them |
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Definition
| Name 3 effects of violent volcanic eruptions. |
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