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en.wikipedia.org/wiki/Volcano

A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava .... They are sometimes formed within the crater of a previous volcanic eruption, as in the case of Mount Saint Helens, but can also form ...

www.nationalgeographic.com/environment/natural-disasters/volcanoes

Get more information about volcanoes from National Geographic.

www.encyclopedia.com/earth-and-environment/geology-and-oceanography/geology-and-oceanography/volcanoes

Get information, facts, and pictures about Volcanoes at Encyclopedia.com. Make research projects and school reports about Volcanoes easy with credible ...

www.weatherwizkids.com/weather-volcano.htm

A volcano is a mountain that opens downward to a pool of molten rock below the ... has erupted thousands of years ago and there's no possibility of eruption.

www.natgeokids.com/uk/discover/geography/physical-geography/volcano-facts

Check out these fascinating volcano facts with National Geographic Kids! ... Check out this explosive video, full of exciting facts and information about volcanoes!

www.volcanodiscovery.com/volcanoes.html

Active volcanoes worldwide - short information / VolcanoDiscovery.

www.dosomething.org/us/facts/11-facts-about-volcanoes

A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. In an eruption ...

geology.com/volcanoes

Articles, facts, information and photos for volcanoes and volcanic activity. | Geology.com.

www.livescience.com/27295-volcanoes.html

Feb 20, 2013 ... A volcano is an opening in Earth's crust where magma breaks ... This cooler, thick lava usually rises near the end of an explosive eruption and ...