Terms related to volcanoes
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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| a process that occurs at divergent plate boundries | rifting
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| is an instrument that detects earth's movements | seismometer
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| a large circular depression, with a diameter of about 5 km lies within the vocano's summit | caldera
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| those that form when explosive eruptions of sticky lava alternate with quieter eruptions of volcanic rock bits | composite-cone volcano
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| melted rock, it is less dense than its other surrounding material | magma
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| is made of layers of cinders | cinder-cone volcano
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| is any opening in earth's crust through which hot gases, rocks, and melted material erupt | volcano
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| forms when lava flows quietly from a crack in earth's crust | sheild volcano
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| extremly hot places deep within earth's mantle | hotspot
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| magma then rises and forms a chain of volcanoes | island arc
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| magma that flows out onto earth's surface from a volcano, when magma researches earth's surface | lava
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