is any place where gas, ash, or melted rock come out of the ground.

is less dense than solid rock, so it rises toward the surface.

is magma that has reached Earth’s surface.

are giant sections of lithosphere on Earth’s surface.

is a location where a column of extremely hot mantle rock, called a mantle plume, rises through the asthenosphere.

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Volcanoes

Term	Definition
volcano	is any place where gas, ash, or melted rock come out of the ground.
magma	is less dense than solid rock, so it rises toward the surface.
Lava	is magma that has reached Earth’s surface.
vent	opening of a volcano.
tectonic plates	are giant sections of lithosphere on Earth’s surface.
hot spot	is a location where a column of extremely hot mantle rock, called a mantle plume, rises through the asthenosphere.