Tuesday 16 December 2008

volcanoes

125 years ago the biggest volcano in the world erupted, Krakatau. It was described with the force of 13,000 Hiroshima atom bombs and also described with a sound that could be heard from 1,930 miles away. The volcano also caused a tidal wave killing 36,417 people in java and Sumatra, destroyed 165 villages and towns, and 2 thirds of the island. Wind blew the ash from the volcano as far away as new-York sea levels were also raised in the English Channel
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a volcano is an opening which will allow all sorts of materials such as magma and molten rock an eruption only occurs when the pressure is so great it has no where else to go and is released through the opening

1 comment:

  1. We think that this passage is very detailed but is a bit too complicated for us to uderstand.The measurements are very accurate and easy to understand. toni and chloe

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