A supersaturated solution can be prepared by dissolving solute in solvent while adding . A supersaturated solution contains more than can ordinarily be dissolved in the solvent at room temperature. A solution may remain supersaturated until is initiated, often by adding solid to the solution or by allowing solvent to evaporate.

Heat, solutes and high temperature.

Explanation:

A supersaturated solution can be formed by dissolving solute more solute in solvent by increasing temperature of the solution. A supersaturated solution contains more quantity of solutes than can be dissolved in the solvent at room temperature. A solution may remain supersaturated until the solution has high temperature and when the temperature started lower, the extra dissolve solutes begin undissolved and remain suspended in the solution.