chapter 6 vocanoes vocabulary
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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| volcanoes | a weak spot in the crust where molten material,or magma,comes to the surface.
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| magma | a molten mixture of rock-forming substances, gases,and water from the mantle
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| ring of fire | a volcanic belt formed by the many volcanoes that rim the pacific ocean
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| vocanic rocks | pumice and obsidian are two types of volcanoe rocks
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| magma chamber | is beneath a vocanoe,magma collects in a pocket
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| pipe | a long tube in the ground that connects the magma chamber to earths surface
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| vent | molten rock and gas leave the volcano through an opening
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| crater | a bowl-shaped area that may form at the top of a volcanoe around the central vent
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| volcanic eruptions | there are two types of volcanic eruption. a quiet eruption and a explosive eruption
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| dormant | a volcano that is sleeping. Will awaken in the future and become active.
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| extinct | a dead volcano that is unlikely to erupt again
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| sheild volcano | has quiet eruptions that gradually build up a gently sloping mountain.
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| cinder cone volcano | erupts ash, cinders, and bombs explosively to form a cone-shaped hill.
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| composite volcanoes | has quiet eruptions that alternate with explosive eruptions, forming tall, cone shaped mountains where layers of lava alternate with layers of ash
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| lava plateau | made up of many layers of thin,runny lava that erupt from long cracks in the ground
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| calderas | a huge hole left by the collapse of a volcanic mountain
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| Lava | when magma reaches the surface.
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| Hot Spot | is an area where material from deep within the mantle rises and then melts, forming magma.
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| Lava flow | is the area covered by lava as it pours out of a vent.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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