Sieving is a separation technique helps to separate fine impurities particle from mixture.

Sieves separate them from each other. Generally we see daily in our kitchen.

For example, as you see your mother will do this for separate tea granules from tea, fine particles separated from wheat flour for dought and them we cook chapatti from this.

Sieving use only when substances are unequal in size. It is common type of separation technique with less effort.

Question 1) Give examples of mixtures where sieving is used.

Answer- Mixture of sand and gravel, stones in flour, etc

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