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4/17/10,

This is my research on volcanoes as we are making a model of a volcano. I apologise for forgetting to buy the plasticine this week. Marcus and I will do most of the model making while Nat n Yan Hern will focus on the powerpoint.
PS[pls dont just throw the whole chunk of info on the blog, it will make those doing ppt job much easier. thanks :)]


basic intro on volcanoes

A volcano is an opening in a planet's surface or crust which allows hot magma, ash and gases to escape from below the surface.

Damage it does
Volcanoes are the greatest producers of CO2 in the world. However, their presence is good if they are dormant as the soil tends to be extremely fertile in the area. During eruption, there are often shockwaves of sound, a wave of ash and flying molten rock. Underwater volcanoes are often the cause of tsunamis. Though lava have killed a small number of people, the majority of damage to society a volcano does is economic, agriculture and settlements can be ruined.A caldera can cause widespread destruction and immense loss of life, destroying for dozens of miles in every direction and creating an ashfall spreading over hundreds of thousands of square miles, killing much of what lives in the affected area, fortunately those volcanoes erupt once every several hundred thousand years

Lim Jaek Wern 21 recorder

Saturday, April 17, 2010