Question

Evercises
1. Why do we need to separate different components of a mixture? Give to
examples
2. What is winnowing? Where is it used
How will you separate husk or dirt particles from a given sample of pulses before
cooking
What is steving? Where is it used
5. How will you separate sand and water from their mixture?
bow

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Answer 1

Answer:

1 Among different components of mixture there are many substances which are harmful or not useful for us. To remove these harmful or unuseful components we need to separate them. For example: (a) Tea leaves are separated from the liquid with a strainer while preparing tea.

Answer 2

Answer:

Sieving is a method in which fine particles are sieved through holes of the sieve while the bigger impurities remain on the sieve. Sieving is used in a flour mill to separate impurities like husk and stones from wheat before grinding it.