Volcano
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| volcano | vent or fissure to Earth's surface through which magma and gases are expelled
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| magma | hot molten rock below the Earth's surface
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| lava | hot molten rock above the Earth's surface
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| viscosity | resistance of a liquid to flowing
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| tectonic plates | the lithosphere broken up into pieces like a puzzle
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| Ring of Fire | Major volcanic belt- arounnd rim of the Pacific
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| Plate Boundary | where two or more tectonic plates meet
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| Mid-Ocean Ridge | huge underwater mountain chain
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| subduction | when the plates collide and one gets pushed beneath the one into the mantle
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| volcano | vent or fissure to Earth's surface through which magma and gases are expelled
🗑
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| magma | hot molten rock below the Earth's surface
🗑
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| lava | hot molten rock above the Earth's surface
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| viscosity | resistance of a liquid to flowing
🗑
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| tectonic plates | the lithosphere broken up into pieces like a puzzle
🗑
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| Ring of Fire | Major volcanic belt- arounnd rim of the Pacific
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| Plate Boundary | where two or more tectonic plates meet
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| Mid-Ocean Ridge | huge underwater mountain chain
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| subduction | when two plates collide and one gets pushed beneath the other into the mantle
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| convection | movement of matter due to differences in density from heating and cooling (hot things rise up and cool things sink)
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| hot spot | a volcanically active area of Earth's surface, commonly far from a tectonic plate boundary
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| mantle plume | unusually hot spot in the mantle
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| pyroclastic flow | a mixture of hot gases, ash, cinders (pebble size), ex bombs large pieces- BB to car)
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| volcanic crater | opening/depression at the top of the volcano
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| vent | the opening at the surface of Earth through which volcanic material passes
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| magma chamber | a large opening full of magma
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| cone | the mountain shaped portion of the volcano
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| caldera | when a magma chamber collapses it may leave an even bigger depression/opening
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| fissures | cracks in the Earth's crust
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| lava plateau | thick mostly flattened layer of cooled lava
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| active volcano | erupting volcano or shows signs it may erupt in near future
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| dormant volcano | sleeping volcano- can awaken and become active
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| extinct volcano | dead volcano; unlikely to erupt again
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| composite volcano | tall cone-shaped mountains in which layers of lava alternate with layers of ash
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SSC 8th LA
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