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1
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not currently active but able to become active in the future
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2
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a large hole at the top of a volcano formed when the roof of a volcanos magma chamber collapses
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3
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an area where magma from deep within the mantle melts through the crust above it
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4
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a long tube through which magma moves from the magma chamber to the earths surface
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5
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the area covered by lava as it pours out of a volcanos vent
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6
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a tall cone shaped mountain in which layers of ash and other volcanic materials
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11
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a sad of volcanic rock formed when magma forces it's self across layers of rock
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12
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the opening through which molten rock and gas leave a volcano
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15
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a bowl shaped area that forms around a volcanos central opening
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17
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the molten mixture of rock forming substances, gases, and water from the mantle
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18
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a material found in magma that is formed from the elements oxygen and silicon. its the primary substance of earths crust and mantle
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20
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term used to describe a volcano that is no longer active and unlikley to erupt again
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