What is filtration? Give examples.

Filtration is a method of separation used to remove insoluble solid particles from a liquid using a filter. The filter allows the liquid to pass through while trapping the solid particles.

This method is useful when the particles are too fine to settle down quickly or cannot be separated by decantation.

Common examples include filtering tea to remove tea leaves, purifying drinking water using water filters, and separating sand from water using filter paper in laboratories.

In simple terms, filtration helps in obtaining a clear liquid by removing unwanted solid impurities.