Question

Perform an activity to separate the cream from milk by the process of centrifugation.

Answer 1

Defining centrifugation

Centrifugation is the process of separating suspended particles of a substance from a liquid in a combination by churning it at high speed.

Activity:

To separate the cream from milk by the process of centrifugation.

Procedure

1. Take some full-cream milk in a test tube.
2. Place the mixture in a test tube and put it into a centrifuge machine.
3. Centrifuge it for two minutes in a centrifuge machine.
4. Remove the test tube from the machine.
5. If you don't have access to a centrifuge, a milk churner will suffice.

Observation

The number of soluble fats present in milk smashes at high speeds to produce larger particles, which are known as cream. The resulting cream is removed, leaving only the fat-free milk. When a test tube is spun rapidly, the denser particles are forced to move to the bottom, while the lighter particles remain at the top.

Conclusion

Centrifugation can be used to separate the cream from the milk.