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Science Extra Credit

Melissa Goldstein

Science extra credit on volcanoes.

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Across
1.a hole left by the collapse of a volcanic mountain, enormous eruption releases all of the magma, hollow shell with no support, it collapses.
3.fast moving current of super-heated gases and rock fragments (2 Words)
6.most common, steep sided cones (3 Words)
7.where the magma escapes from
8.when lava hardens it forms this type of rock
10.small fragments are called
11.pocket of magma (2 Words)
12.large fragments are called blocks or ________
13.volcanic mountain with a wide base and gently sloping sides (2 Words)
Down
1.also known as stratovolcanoes, tall, cone shaped mountains, layers of lava alternate with layers of ash (2 Words)
2.opening in earth’s surface in which magma erupts
4.bowl shaped area that forms around the vent
5.area where magma melts through the crust in the middle of a lithospheric plate, hot spot remains in same location as plate moves, produces a chain of extinct volcanoes (2 Words)
9.erupted magma

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