This is a more common method of separating an insoluble solid from a liquid. An example of such a mixture is sand and water. Filtration is used in water treatment plants, where water from the river is filtered to remove solid particles.

Here is a basic lab setup for filtration:

This process involves the use of a filter paper placed in a filter funnel. The funnel is placed in a beaker, and the mixture of water and sand is poured into the funnel. The liquid part drains through the filter paper into the beaker, leaving the solid sand particles trapped on the filter. After filtration, the liquid part collected is called the filtrate, and the solid bit that remained on the filter paper is called the residue.