Page 396 - Primary Six Notes

WATER

Water is a colourless liquid substance made up of hydrogen

and oxygen gases. These gases are in the ratio of 2:1 (H2O)

Sources of water

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 Rain water  Rivers
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 Artesian wells  Swamps

 Hot springs  Ponds
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 Streams  Oceans ■n<. p\\,
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 Lakes m : I ja *• ■  Seas

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Properties of pure water

 Water is colourless

 Pure water is tasteless

 Water has no smell

 Water is without suspended matter like germs

 Pure water boils at 100 C (212 F) and freezes at 0 C (32 F)
o
o
o
o
at sea level.
 Pure water forms lather (foam) very easily) with soap.