Unsaturated vs. Saturated

We're discussing the difference between a solution that can take more of a solute than what you've already put in. Its another one of those pretty simple concepts that just happens to become confusing all of a sudden sooner or later. For now though, it's all good :) Unsaturated is when a solution can take more of a solute and still be able to dissolve it perfectly. Saturated, on the other hand, is when a solution has taken in about all of the solute it can dissolve. Why this happens, I'm not sure. But I do know that if you're trying to mix salt [the solute] and water [the solvent] and it mixes perfectly then the solution you're left with is unsaturated because it can handle more salt. Yeee!!