Remove a drop of the solution with a glass rod and see whether any solid forms when the drop cools.
If it is solid at room temperature but melts when heated.
From your question it is impossible to tell. A salt-water solution can be unsaturated or saturated depending on how much salt was added.
An unsaturated solution can dissolve more solute at a given temperature, whereas a saturated solution contains the maximum amount of solute that can be dissolved in the solvent at that temperature. You can tell the difference by observing whether there is still undissolved solute present in the solution (unsaturated) or if the solution is clear with no solute visible (saturated).
A saturated solution is one that can dissolve no more of the solute at a given temperature and pressure. This means that the maximum amount of solute has been dissolved in the solvent, and any additional solute will not dissolve and will instead form a precipitate.
A solution is saturated when it is no longer possible to dissolve an additional quantity of solute, at constant temperature.
A saturated solution.
A saturated solution.
You have to Heat it!
A graph can illustrate what solution is saturated and unsaturated. If the point is on the line, then the solution is saturated, while if is below the line, the solution is unsaturated.
A Saturated Solution can no longer hold any more solute in solution.
A saturated solution has a solute that is at its maximum concentration. At this point, no more solute can be dissolved at the current temperature. The dissolved and undissolved solutes are at equilibrium in the saturated solution.
A saturated solution is made when you have added so much solute that no more dissolves. The amount of solute needed to make a saturated solution will change with the temperature of the solution.