Volcanic eruptions by Fernanda Arias https://padlet.com/marias8/ude5it8s1uqm P. F J.A J. B F. A en-us 2017-11-20 14:38:38 UTC 2017-11-27 02:21:03 UTC hello@padlet.com What Happens When a Volcano Erupts? pferrari1 https://padlet.com/marias8/ude5it8s1uqm/wish/208728464 Lav begins as magma. Magma usually forms in the somewhat soft layer of hot, solid rock that lies in the upper mantel, just below a layer of harder rock. 
If this magma reaches the surface, a volcano can form]]> 2017-11-20 14:41:31 UTC https://padlet.com/marias8/ude5it8s1uqm/wish/208728464 Inside a Volcano pferrari1 https://padlet.com/marias8/ude5it8s1uqm/wish/208730494 A volcano is more than a large, cone shape mountain. Inside a volcano is a system of passageways through which magma moves. 
 ]]> 2017-11-20 14:44:56 UTC https://padlet.com/marias8/ude5it8s1uqm/wish/208730494 Magma Chamber pferrari1 https://padlet.com/marias8/ude5it8s1uqm/wish/208731955 All volcanoes have a pocket of magma beneath the surface. Beneath a volcano, magma collects in a magma chamber.]]> 2017-11-20 14:47:14 UTC https://padlet.com/marias8/ude5it8s1uqm/wish/208731955 Pipe pferrari1 https://padlet.com/marias8/ude5it8s1uqm/wish/208732087 Magma moves upward through a pipe a long tube that extends from Earth's crust up through the top of the volcano, connecting the magma chamber to Earth's surface. ]]> 2017-11-20 14:47:28 UTC https://padlet.com/marias8/ude5it8s1uqm/wish/208732087 Vent pferrari1 https://padlet.com/marias8/ude5it8s1uqm/wish/208732220 Molten rock and gas leave the volcano through an opening called a vent. Some volcanoes have a single central vent at the top. But volcanoes often have vents on the side also.]]> 2017-11-20 14:47:42 UTC https://padlet.com/marias8/ude5it8s1uqm/wish/208732220 Lava Flow pferrari1 https://padlet.com/marias8/ude5it8s1uqm/wish/208732302 A lava flow is the spread of lava as it pours out of a vent. ]]> 2017-11-20 14:47:51 UTC https://padlet.com/marias8/ude5it8s1uqm/wish/208732302 Crater pferrari1 https://padlet.com/marias8/ude5it8s1uqm/wish/208732390 a crater is a bowl-shaped area that may form at the top of a volcano around the central vent.

]]> 2017-11-20 14:48:01 UTC https://padlet.com/marias8/ude5it8s1uqm/wish/208732390 A Volcanic Eruption pferrari1 https://padlet.com/marias8/ude5it8s1uqm/wish/208738738 As pressure falls within the magma, the size of the gas bubbles increases greatly. These expanding gases exert great force. 
When a volcano erupts, the force of the expanding gases pushes magma from the magma chamber through the pipe until it flows or explodes out of the vent. 
Once magma escape from the volcano and become lava, the remaining gases bubble out. ]]> 2017-11-20 14:59:09 UTC https://padlet.com/marias8/ude5it8s1uqm/wish/208738738