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Volcanic eruptions for children
introduction to volcanoesWhy do volcanoes eruptKinds of volcanoesTypes of volcano eruptionVolcanic eruptions in the seaParts of a volcanoEffects of a volcanoimportant volcano words


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what are volcanoes for children



Important volcano words


Eruption
In volcanic terms, (e-rup-shun) is a discharge or emission of matter from down below the earth's crust through an opening on the earth’s surface.

Extinct Volcano

This is one that has not had any eruptive activity in 10,000 years and not expected to have any in the next few years.

Dormant Volcano
This is one that has not erupted in a long while, but scientists believe will erupt at some time.

Active Volcano
This is a volcano that has erupted in recent time or still erupting.

Constructive boundary
A weak zone in the earth’s crust where two tectonic plates are moving away from each other. They are also called divergent plate boundaries.

Destructive boundary
A weak zone in the earth’s crust where two tectonic plates are moving towards each other.

Pyroclastic

A pyroclastic flow is a mixture of hot steam, ash, rock and dust.

Supervolcano
This is a massive volcano that results in a depression (caldera), with ridges of higher lands bordering it.

Yellow stone
This is an example of a supervolcano, with a depression of about 55km by 80km wide. Its last eruption was about 1630,000 years ago.

Go back

Our research for this topic included these sources:
www.pubs.usgs.gov/gip/volc/intro.html, www.sciencekids.co.nz/sciencefacts/earth/volcano.html., www.weatherwizkids.com/weather-volcano.htm., dosomething.org., www.onegeology.org/extra/kids/volcanoes.html., www.bbc.co.uk/schools/gcsebitesize/geography/natural_hazards/volcanoes_rev2.shtml., http://en.wikipedia.org/wiki/Volcano

www.bbc.co.uk/news/world-latin-america-25545555

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