How do Volcanoes change the Earth s surface?
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1 How do Volcanoes change the Earth s surface?
2 Volcanoes In the Earth s mantle, there are pockets of hot, liquid-like rocks and gases called magma. As heat and pressure builds up in these pockets (chambers) the gases expand.
3 Volcanoes The increasing pressure forces the magma up the volcano s pipe and out the opening of the volcano (crater). Once the magma reaches the surface of the Earth it is called lava. Once all the pressure is released, the volcano stops erupting.
4 Volcanic Activity Volcanoes are both constructive and destructive forces that change the Earth s surface.
5 Constructive They can add to the landforms of mountain ranges and
6 Volcanic Activity create islands in the middle of the ocean.
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8 Hawaii s Kilauea Volcano This volcano has been erupting continuously since January Lava is pouring down the edge of the island and into the ocean, becoming solid rock. Land is being added here!
9 Hawaii s Kilauea Volcano This new land has been growing and extending the edge the Hawaiian Islands and into the ocean each year.
10 Effects of Volcanoes and Earthquakes Scientists cannot control volcanic eruptions and earthquakes However, they can warn people when they believe they are most likely to occur
11 Predicting Earthquakes and Volcanoes Devices called seismographs can detect vibrations during an earthquake. Seismologists study seismic waves The record made by a seismograph is called a seismogram ci.ess.earthsys.seismograph/ 892
12 Using Science and Technology to Keep People Safe Seismographs also help scientists predict when tsunamis and volcanoes will occur Tsunami a huge wave caused by an earthquake under the ocean Seismographs watch for underwater earthquakes to predict when one will occur sh.html
13 Bill Nye: Earthquakes and Volcanos Video (7 min)
14 Earthquakes since 2000 time-lapse map
15 Volcano Infographic
16 Volcano Infographic Task: Create an infographic using what you ve learned about volcanoes. Due Date: Friday, September 8 th, 2017 Requirements: Create your infographic using any of the websites listed in the content library of your class notebook. Infographics should be creative. The infographic should be submitted as a hard copy (printed out) and in Office365 (upload and share with me). Choose a topic for your infographic: How do volcanos change the Earth s surface? Are volcanoes constructive, destructive, or both? Types of volcanoes Interesting facts about volcanoes Grading: Infographics will be graded using the attached rubric
17 Name: Score: Volcano Infographic rubric No Evidence (0) Limited (1) Progressing (2) Meets (3) Content Knowledge The student does not demonstrate an understanding of volcanoes. The student demonstrates a limited understanding of volcanoes. The student demonstrates some understanding of volcanoes. The student demonstrates a strong understanding of volcanoes. Project Requirements The student s infographic meets none of the requirements of the project. The student s infographic meets few of the requirements of the project. The student s infographic meets several of the requirements of the project. The student s infographic meets all of the requirements of the project. Creativity The student s infographic design demonstrates no creativity and/or effort. The student s infographic design demonstrates a limited amount of creativity and effort. The student s infographic design demonstrates some creativity and effort. The student s infographic design demonstrates an appropriate amount of creativity and effort. Comments:
18 Infographic Example
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