What is a Volcano?

Earth Science - Middle School

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Magma Formation Magma is a mixture of liquid rock, gases and water formed from intense heat and pressure in the Earth's mantle. incr easing heat & pr essur e crust mantle magma liquid rock gases water What Is a Volcano? A volcano forms when magma moves through the crust and erupts onto the surface of the Earth. Magma that flows onto the Earth's surface is called lava . Layers of cooled lava harden into rock and build up on the Earth's surface around a volcano. crust magma reservoir lava pipe side vent vent What is a Volcano? Mt. Saint Helen’s © Copyright NewPath Learning. All Rights Reserved. 94-4532 Visit www.newpathlearning.com for Online Learning Resources. Photos courtesy of USGS & NOAA. magma
incr easing heat & pr essur e liquid rock gases water Pause and Review Label the images below. What is a Volcano? © Copyright NewPath Learning. All Rights Reserved. 94-4532 Visit www.newpathlearning.com for Online Learning Resources.