In our daily lives, we often need to separate substances that are mixed together. Some simple methods commonly used are:

Handpicking

Method

Spread the food grains (like wheat or rice) on a sheet of paper.

Identify and remove impurities such as stones, husks, and broken grains by hand.

Use

Suitable for separating larger-sized impurities when their quantity is small.

Convenient for separating dirt, stones, and husks from grains.