What are Volcanoes?

By Daniel Emke

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A volcano is sort of like a chimney...

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A chimney for the earth!

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A chimney is something that helps let smoke

out.

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The earth has heat and gases inside of it...

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They need to escape too!

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The earth is made of layers.

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On the outside is the crust.

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The earth’s crust is made up of pieces...

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Kind of like a puzzle...

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Because they fit together.

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When they move, some

pieces overlap.

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In the spaces, magma comes to

the surface to escape.

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Magma is the hot stuff in the center

of the earth.

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When magma reaches the

surface it is called lava.

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When the lava pushes through

the spaces its called an eruption.

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Every time it erupts, it makes

the volcano bigger.

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It takes over 10,000 years for

a volcano to grow.

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“The average volcano erupts about one time

every 100 years.”

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Most of them start in the

ocean.

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The End

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Bibliography

Albers, John. "How Does a Volcano Form?" EHow | How to Videos, Arti-cles & More - Discover the Expert in You. | EHow.com. EHow.com. Web.

11 Jan. 2012. <http://www.ehow.com>.

Weather Wiz Kids Weather Information for Kids. Web. 17 Jan. 2012.

<http://www.weatherwizkids.com/weather-volcano.htm>.

Williams, Stanley. "Volcanic Eruptions | Scholastic.com." Scholastic | Children's Books and Book Club | Scholastic.com. Scholastic, Feb. 1995.

Web. 11 Jan. 2012. <http://www.scholastic.com/teachers/article/

volcanic-eruptions>.

"Dive and Discover : Hot Topics : Lava Flows." Dive and Discover : Expe-ditions to the Seafloor. Web. 11 Jan. 2012. <http://

www.divediscover.whoi.edu/hottopics/lavaflows.html>.