Volcano's

4. The pipe that carries magma from a reservoir or chamber to the vent where it is erupted.
6. A sudden and especially violent explosion produced during a volcanic eruption.
7. The opening at the Earth's surface where magma, rock fragments, and/or volcanic gases are emitted.
9. hot, pressurized volcanic gas that can cause a volcanic explosion or blast.
11. A volcano that is not erupting now, but is considered likely to erupt in the future.
12. A vent in the surface of the Earth which magma and gases erupt, and form a structure.
14. A bowl depression that usually lies directly above the vent from which volcanic material is ejected.
16. a sudden motion or trembling in the crust.
17. A surface feature of a geothermal system, where warm or hot water flows out of the ground.
18. Molten rock beneath the surface of the earth that erupts from a volcano as lava.

1. the effusion of lava to the surface of the earth.
2. The zone of the Earth below the crust and above the core.
3. A volcano that is currently erupting or has erupted during the last 10,000 years.
5. Earth's outermost layer or shell.
6. plate boundaries are where the tectonic plates are moving towards each other.
8. mixture of rock, mineral, and glass pieces expelled from a volcano during an eruption.
10. an opening in the Earth's crust through which lava, ash, and gases erupt and create a volcano.
13. Fine particles of pulverized rock (tephra) erupted from the vent of a volcano.
15. Molten rock that has reached the Earth's surface and flowed from a volcano .
18. The reservoir beneath a volcanic vent where magma resides prior to eruption.