Question

Write the principle behind the following separation techniques :

Sieving

Answer 1

• The process of sieving is based on the size difference of solid particles to be separated.
• The particles that are larger remain on the sieve while those which are small in size pass through the pores of the sieves.
• Hence, the solid particles are separated.
• Example: The process of Sieving is used at construction sites to separate small stones and pebbles from the sand.