Describe the process of sieving with an example.

Sieving is a mechanical process used to separate particles of different sizes by using a sieve or mesh. It is commonly used in both household and industrial applications to sift or filter materials. The process involves passing a mixture through a mesh or perforated surface that allows smaller particles to pass through while larger particles remain behind.

Steps in the Sieving Process:

1. Material Preparation: The mixture or substance that needs to be separated is prepared. This could include powders, grains, or liquids that need sorting.
2. Placement on the Sieve: The mixture is placed on a sieve, which is a mesh or screen with varying hole sizes, depending on the desired particle size.
3. Shaking or Agitation: The sieve is then shaken or agitated, allowing the smaller particles to pass through the mesh, while the larger particles are trapped on the sieve.
4. Separation: After agitation, the particles are separated into different groups based on size — fine particles (like flour or sand) pass through, and larger particles (like stones or wheat) remain on top.

Example of Sieving:

A common example of sieving is when flour is separated from any coarse particles or impurities in it. The flour is passed through a fine mesh sieve, and the fine powder falls through while any larger particles (like wheat bran) remain on top.

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