Name: Separation Techniques - II
Uploaded: 2019-07-19
Duration: 3 min 2 s
Description: Once the grains are harvested, their stalks are bundled. But how do we separate those grains from the stalk for our consumption? Let’s find out!

Question

Complete the following table.

S.No	Example	Useful part	Less useful part	Method of separation
1	Rice	Rice	Hay, small stones	Hand-picking, sieving
2	Tea with tea leaves
3	Wheat

Accepted Answer

Tea with tea leaves can be separated by filtration. Tea from tea leaves is separated using a strainer. Tea is a useful part and tea leaves are less useful part.

Wheat may contain hay, small stones as impurities. They can be separated using hand-picking and sieving.

The process of separating heavier and lighter components of a mixture by wind or by blowing air is called winnowing.

Sieving is a method of separation of two or more components of a mixture on the basis of difference in the size.

S.No Example Useful part Less useful part Method of separation

1 Rice Rice Hay, small stones Hand-picking, sieving

2 Tea with tea leaves Tea Tea leaves Filtration

3 Wheat Wheat Hay, small stones Hand-picking, sieving

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