Question

How is cream separated from milk?

Answer 1

Centrifugation:

1. The process of separating the suspended particles of a substance from a liquid in a mixture by churning them at high speed is called centrifugation.
2. The cream is separated from the milk by centrifugation.
3. Centrifugation works on the principle that the dense particles are forced to move to the bottom and the lighter particles stay at the top of the test tube when spinning rapidly.
4. To carry out this the milk is rotated at a very high speed in a centrifuge machine.
5. The cream being lighter floats over the heavier milk.
6. The cream formed is removed and leaves behind the fat-free milk.

Therefore, the cream can be separated from milk by the process of centrifugation.