Question

To separate a mixture of solid particles of the same material into lots of different sizes, the best method would be_________

Answer 1

• Sieving is used for separating solids when the constituents of a mixture are of different sizes.
• The sieve is a wire mesh fixed tightly in a frame. Solids larger than the wire mesh are retained on the sieve and smaller solids pass through it.
• By using a large number of sieves, each with a wire mesh of different sizes, it becomes possible to separate a mixture of solids into different lots of uniform sizes.
• Example: To separate barn from flour, sieving is used.

Therefore, to separate a mixture of solid particles of the same material into lots of different sizes, the best method would be sieving.