Explanation: 1 Mark each
There are various methods used for separating solid particles from substances. Some of them are:

1.Sedimentation

2.Decantation

3.Filtration

Sedimentation: The process of separating insoluble substances which are heavier than liquid by allowing them to settle down on their own due to gravity is called sedimentation. The particles which settle down during sedimentation are called sediments.
Decantation follows sedimentation. In this process, the clear upper liquid is poured out from the container without disturbing the sediment. The upper clear liquid is called supernatant.
Filtration is a process by which insoluble solids can be removed from a liquid by using a filter paper.