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Volcanoes Vocab
Term | Definition |
---|---|
pyroclastic flow | a dense cloud of superhot volcanic gases and rock fragments that race down hill from a volcano |
volcano | an opening in Earth’s crust through which molten rock, rock fragments, and hot gases erupt |
geyser | a type of hot spring where water shoots into the air |
folded mountain | a mountain that forms as continental crust crumples and bends into folds |
lava | magma that has reached Earth’s surface |
fault block mountains | mountains that form as blocks of rock move up or down along normal faults |
acid rain | rain that contains large amounts of gases, such as sulfur dioxide, that mix with water in the air to form an acid |