In science, supersaturated is a solution that contains more material dissolved in it than the liquid can absorb under normal conditions. By heating the liquid, we can increase it absorption capacity. The material to be dissolved is called solute while the liquid in which the solute is being dissolved is called solvent. Suppose water is your solvent while sugar is your solute. You dissolve sugar in water slowly till a point comes that the water does not dissolve anymore sugar in it and it starts to deposit at the bottom of the container, called saturation point. To make the solution supersaturated, now heat the solution, you will see that the deposited sugar will also dissolve and water will absorb even more sugar. This shows that when we heated the solution it absorbed more solute than it did under normal conditions to form a supersaturated solution.