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Slide 1 :
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The Parts of a Volcano |
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Slide 2 :
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What is a Volcano? A volcano is a mountain that forms when magma reaches the surface of the Earth.
Magma rises because it is less dense than the solid rock around it.
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Slide 3 :
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What are the parts of a Volcano? VENT- the vent is the opening from which lava flows. Dust, ash, and rock particles can also be thrown out of the vent! |
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2. Crater- the top of the volcano. It is a funnel shaped pit. It is formed when the material explodes out of the vent! |
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3. Volcanic cone- is the pile of lava, dust, ashes, and rock around the vent. It can be found in different shapes! |
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Types of Volcanoes There are 3 types of Volcanoes:
Shield
Cinder Cone
Composite
They are
classified by
how they form.
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Slide 7 :
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Shield Volcano Is wide and somewhat flat.
It forms from a quiet eruption.
Lava flows out quietly and for great distances. |
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Cinder Cone Volcano Has tall, very steep sides.
Has explosive eruptions.
This eruption produces a lot of cinder and ash. |
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Composite Volcano Form from explosive eruptions.
Produce a lot of lava and ash.
Is small, with steep sides. |
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Slide 10 :
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The volcano in southern Iceland's Eyjafjallajokull glacier sends ash into the air |
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Thick drifts of volcanic ash blanketed parts of rural ,as a vast plume of grit drifted over Europe. |
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Smoke and steam hangs over the volcano under the Eyjafjallajo kull glacier in Iceland, which has erupted for the second time in less than a month, melting ice, shooting smoke and steam into the air and forcing hundreds of people to flee rising floodwaters. Volcanic ash drifting across the Atlantic forced. |
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Smoke and steam rises from the volcano over the sky. |
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Slide 14 :
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Volcanic ash causes travel disruption. This natural-color |
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