Question

Class 8th
Give the short notes of methods of separation of mixtures​???

Answer 1

QuestioN :

Give the short notes of methods of separation of mixtures​?

ANswer :

Methods of separation of mixtures​ :-

• Handpicking:- In the method of hand picking we used to pick up the slightly large particles undesirable particles from the grains by hands.

• Threshing:- After, the crop is harvested, grains are seperated by threshing the plants on a stone or by making cattle walk over the crop. These days, machines called threshers are also used for this purpose. There are also machines called combines which can do both harvesting and threshing.

• Winnowing:- The grains collected after threshing have some chaff which needs to be seperated. This is achieved by winnowing. It is the process where grains are dropped from a height. The heavier grains fall directly to the ground, while the lighter chaff blows away and collects at a distance.

Answer 2

Answer

Some methods of separating substances or mixtures are:-

1. Handpicking.
2. Threshing.
3. Winnowing.  

Handpicking :-

To pick (something, such as a fruit) by using your hand. : to choose (something or someone) carefully by yourself instead of letting someone else do it.

Threshing :-

Threshing is the process of loosening the edible part of grain from the straw to which it is attached. It is the step in grain preparation after reaping.

Winnowing:-

Winnowing is an agricultural method developed by ancient cultures for separating grain from chaff. It can also be used to remove pests from stored grain. Winnowing usually follows threshing in grain preparation.