|Earth: Making Rocks|
Students can learn how an earth scientist studies volcanic rocks by first visiting volcanoes to get a closer look and to collect rock samples, and by recreating the conditions of a magma chamber in the lab. The gas in a bottle of soda is used as an analogy to explain why some eruptions are explosive. The scientist starts by collecting pumice, a light rock filled with holes like a sponge, because it forms from explosive eruptions. Back in the lab, he attempts to duplicate the conditions under which it formed.
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DLESE Catalog ID: DLESE-000-000-006-969
This resource is part of 'Earth: Our World in Motion'
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