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Volcano Vocabulary List & Definitions

 

disaster

A catastrophic event, often resulting in loss of life and property.
dormant Not active.
erosion The gradual process of being eroded by the forces of nature.
eruption The process of bursting forth.
lava Molten rock that flows out of a volcano.
ash Fine material thrown out of a volcano when it erupts.
magma Molten material under the earth's crust where igneous rock is formed.
pumice A light glass thrown up from volcanoes used for cleaning, smoothing, or polishing.
summit The topmost part of anything.
vent An opening or way out, an outlet.
crater An opening at the top of a volcano that is shaped like a bowl.

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