KTTM+3.2

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Vocabulary
Magma Chamber: underneath the volcano there is a pocket in which the magma is stored Pipe: a tunnel in the ground where magma rises to the surface Vent: an opening in the volcano where gas from molten rock leaves Lava Flow: the area covered by lava as it pours out of a vent Crater: an area that may form at the top of a volcano around the volcano's central vent Silica: one of the

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Outline
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How Magma Reaches Earth's Surface

 * Lava begins as magma in the mantle
 * magma forms in the asthenosphere
 * materials of the asthenosphere are under great pressure

Inside A Volcano

 * magma forces it's way through cracks
 * magma collects in a pocket called the magma chamber

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