1. Filtration: This method is used when you have a mixture of a solid and a liquid. You pass the mixture through a filter, such as filter paper or a sieve. The solid particles are trapped by the filter, while the liquid passes through. This is how you separate sand from water.
2. Evaporation: This is used when you have a mixture of a dissolved solid and a liquid. You heat the mixture, causing the liquid to evaporate and leave the solid behind. For example, you can separate salt from salt water by evaporating the water.