CJKN+3.2

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Vocaulary
Magma Chamber:The pocket beneath a volcano where magma collects Pipe:a long tube though which magma moves from the magma chamber to Earth's surface. Vent:The opening through which molten rock and gas leave a volcano. Lava Flow:The area covered by lava as it pours out of a volcano's vent Crater:A bowl-shaped area that forms around a volcano's central opening. Silica:A material that is formed from the elements oxygen and silicon;silica is found in magma. Pahoehoe:A hot fast-moving type of lava that hardens to form smooth, rope like coils. AA:a slow moving type of lava that hardens to form rough chunks;cooler then pahoehoe. Pyroclastic flow:The expulsion of ash,cinders,bombs,and gases during an explosive volcanic eruption. Active:Said of a volcano that is erupting or had shown signs of erupting in the near future. Dormant:Said of a volcano that does not show signs of erupting in the near future. Extinct:said of a volcano that is unlikely to erupt again. Hot Springs:A pool formed by groundwater that has risen to the surface after being heated by a nearby body of magma. Geothermal Energy:Heat energy in Earth's Interior from water or steam that has been heated by magma. Geyser:A type of hot spring that builds up pressure underground and erupts at regular intervals as a fountain of water and steam