Volcanoes

molten rock inside the volcano

liquid that has come out of the volcano to the earth's surface

a large pool of magma under the earth's surface

the tube along which magma goes up

a hill-shaped landform that forms around the volcano when lava cools down

the opening of the volcano

... volcanoes erupt anytime and often.

... volcanoes can erupt again.

... volcanoes haven't erupted for a long time.

Volcanic eruptions USUALLY happen...

• along the edges of tectonic plates.

• in the middle of tectonic plates.

• underwater.

• in the mountains.