Thursday, April 15, 2010

E-learning assignment part 2 (reg.1)


Have you ever think of why ice float? Like most things that float, ice floats because it is less dense than liquid water. Ice is about 9% less dense. When ice forms, it takes up about 9% more space than it did as a liquid. But in this case, if the freezing point becomes 10 degree c, the liquid get denser and couldn't float on the water anymore.

Many cold countries like greenland will face a greatly decrease of water supply. It will affect people's lives many other living organisms will also suffer. Most of the things get frozen easily and i'm sure that this will be a disaster to all those countries.

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