Explain the process of sedimentation and decantation.

Explanation

Sedimentation and decantation
In the mixture of sand and water, the heavier solid particles settles at the bottom and can be separated by this process.
Process : A mixture of sand water is taken in a beaker and kept still for some time. The heavier sand particles settle down at the bottom. The clear water above it , is gently poured off into another beaker with the help of a glass rod. The glass rod helps to pour off the liquid, without disturbing the solid settled at the bottom.
The water collected in the second beaker is clear and the sand particles are left behind in the first beaker.