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Some volcanoes form from mountains that are hollowed out over a certain period of time when the tectonic plates have allowed a little magma to slip between them. (I will tell you the parts of the volcano in a sec)

Other volcanoes are formed from under sea volcanoes that have erupted and the lava cooled and settled on until it reached above sea level (that is how Hawaii formed).

PARTS OF THE VOLCANO:

magma- hot liquid stored inside of the earth

lava- magma that reaches earth's surface

magma chamber- the place where the magma is stored until it can go up the pipe (sometimes this can fuel more then one volcano)

pipe- the hollowed out tube inside the volcano that the magma flows up to reach the vent (this part can have side tubes that go a little ways into the side of the volcano)

vent- the place on the volcano that the magma first bursts out of

c??- a large bowl shaped part of the volcano that the lava blows out and then runs down the side of the volcano

:D Sorry i don't know of any pictures that show this process except for in my science book!

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15y ago

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