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  • Grade Levels : Grades 6-8

Grades 6-8

Grade 6-8 Term

In this video students get to hear and see a really rare volcanic eruption.  These are silent killers called limnic eruptions.  Limnic eruptions occur when a gas bubble builds up and then gets released poisoning the air all around.  This video demonstrates how a limnic eruption killed nearly everyone in two different villages as carbon dioxide was released.  I discuss a little bit about air density during this video as well.

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During my unit on volcanoes I have the students do some research on some famous volcanoes.  Mt. Vesuvius is one.  This video shows a quick tour of the city of Pompeii and discusses how they made casts and molds of the victims of a very famous eruption.

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I show this video when discussing pyroclastic flows.  This is a pyroclastic flow that killed a few people in Japan a couple of years ago.  It is pretty impressive video as people try to protect themselves and outrun the flow.  I also get to discuss how even though there are many warnings of a pending volcanic eruption occurring, it doesn't always mean that there will be advanced warning.

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I have actually been to the Arenal Volcano.  It is a beautiful site.  The volcano erupted sending down a pyroclastic cloud killing several villages in one of the towns close by.  It then erupted off and on creating the steepest cone in the world.  This video is a composite of many other videos showing the eruptions over time.  It is a pretty cool video to watch.  I actually skim through it but get a chance to show how one volcano can have multiple types of eruptions.  I also mention that there are many hot springs near by.  Some of which I got to swim in.

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I show this volcano video when discussing cinder cone volcanoes.  Paricutin erupted in the 1943 and erupted for 9 years afterward.  It occurred on fairly flat land in a farmer's cornfield.  This video is historical footage of the eruption.

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This volcanic eruption style is called Surtseyan, named after the island of Surtsey.  Surtseyan volcanoes erupt below the surface of water.

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I show this volcanic eruption when trying to discuss the different types of eruptions.  This one is called a lava dome eruption. Lava Dome eruptions stay pretty close to the vent and are very thick non explosive eruptions.

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I show this volcanic eruption when trying to discuss the different types of eruptions.  This one is called a vulcanian eruption.

 
 
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I show this volcanic eruption when trying to discuss the different types of eruptions.  This one is called a strombolian eruption.

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I show this video when discussing the different types of volcanic eruptions.  This volcanic eruption style is a Hawaiian style.  The lava does a great job demonstrating Pahoehoe and Aa lava types.

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