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\nHow Science Works: Journey to Etna: Lava Flow and Gas Emissions\n

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\nFind out how volcanic eruptions result in new rock formations and can also affect the Earth's atmosphere.Molten rock below ground is called magma, but when it erupts above ground it's known as lava. When the lava flows cool and solidify...\nFind out how volcanic eruptions result in new rock formations and can also affect the Earth's atmosphere.

Molten rock below ground is called magma, but when it erupts above ground it's known as lava. When the lava flows cool and solidify they form igneous rock. Depending on the mineral composition of the lava, it will cool and form two distinctive structures, known as aa and pehoehoe.
Volcanoes also emit huge amounts of gases when they erupt, such as carbon dioxide and sulphur dioxide, and they even emit gold. Major eruptions can significantly alter the earth's atmosphere for years.\n
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Resource Details

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Educator Rating
Not yet Rated
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Media Length
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3:00
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Grade
Higher Ed
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Subjects
Science
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Media Type
Instructional Videos
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Source:
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\nProTeachersVideo\n\n
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Date
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2008
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Language
English
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Audiences
For Teacher Use
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Usage Permissions
Fine Print: Educational Use
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Concepts

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sulfur, evolution, magma, volcanoes, lava
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earth, volcano, understand, ground, teacherstv, inside, important, fresh, teachers tv, call, atmosphere, year
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Best For: Explaining a topic
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