Did You Know?

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• Water is made up of two elements, hydrogen and oxygen. Its chemical formula is H2O.

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• The existence of water is essential for life on Earth.

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• Water has three different states, liquid, solid and gas (e.g., water, ice and steam).

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• The freezing point of water lowers as the amount of salt dissolved in it increases. With average levels of salt, seawater freezes at    -2 °C (28.4 °F).

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• Water makes a good solvent with many sugars, salts and acids easily dissolving in it. On the other hand, oils and fats don’t mix well with water.

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• Drinking water is needed for humans to avoid dehydration. The amount each person needs during a day depends on the temperature, his or her level of activity and other factors.