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Volcano

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by

Neha Singh

on 23 May 2012

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Transcript of Volcano

Volcano
(cc) photo by Metro Centric on Flickr
(cc) photo by Franco Folini on Flickr
Active Volcanos
... small
Introduction
A volcano is a mountain or a hill that has a vent where lava, rock fragments, hot vapor, and gases come out of. Volcanoes produce a wide variety of natural hazards that can kill people and destroy property. Volcanoes also help soil and make lands and islands. Most of Japan is made of a volcano. The bad thing is that volcanoes cause acid rain and landslides.
Before Volcano
After Volcano
-The volcanic rock pumice is the only rock that can float in water.

-The most formidable volcanoes are called supervolcanoes.

-The largest volcanic eruption ever observed was of Mount Tambora.

-Volcanoes can grow just like us Humans do.

-Volcanoes can become exctinct.

-The biggest volcano on Earth is Hawaii’s Mauna Loa.

- Volcanoes make sunsets more colorful because people have seen an unusual beautiful sunset.

-Throughout years people have learned how to live near a active volcano.

-There are about 1500 volcanoes in the whole wide world.

-Jupiter’s Moons are the most volcanic place in the solar system.

-The word volcano originally comes from the name of the Roman god of fire, Vulcan.

-People build these fountains called volcano fountains.
Facts
Nazek
Neha
BY
Types Of Volcanoes
How It Is Formed
When the temperture inside the earth is too hot it melts rocks into magma. It builds up lots of pressure. The pressure pushes the magma with steams and gasses up through the opening of the earth's crust and up the opening of the volcano's vent.
Zainab
Conclusion
Violent Volcanos
Volcano Fountains
Types Of Volcanoes
Reduce The Impact Of Volcanoes
We can do many things to reduce the impact of volcanoes. We can try to not build towns around a volcano. We can spray lava with seawater. Which has been done
in Iceland during an eruption. We can have a evacuation plan. If no one is there, no one dies!
There are 6 different types of
volcanoes called: stratovolcano,
lava dome, caldera, shield volcano,
cinder cone volcano,and mud
volcanoes. Stratovolcanoes are shaped
like a cone. Lava dome volcanoes
are made from viscous lava. Caldera
volcanoes tops have broken off.Shield
volcanoes are very big. Cinder cone
volcanoes are made of sand so when
the wind blows it blows away some sand.
Mud volcanoes are very small.
In Conclusion we have learned that
volcanoes have both positive and negative effects. We know that the positive effects are that they can create new islands and give nutrients to the soil.
Some negative effects are that people can die from it and it can cause landslides and acid rain. We wish that you try to avoid the effects of volcanoes.
Full transcript