Monday, September 2, 2013

WATER (CLASS 6)

 POTABLE WATER

Water that is fit for drinking by human beings is called potable water.

WATER TREATMENT

The various methods that can be followed for purification are
1. Sedimentation
2. Decantation
3. Filtration
4.Boiling
5. Distillation

BOILING TO KILL DISEASE PRODUCING GERMS

Water must be heated for about twenty minutes after reaching the boiling point to destroy the disease causing germs.

Assignments
a.What is potable water?
b.What are the various methods that can be use to purify water?



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