* Solution Definition: A solution is a homogeneous mixture where one substance (the solute) is dissolved evenly into another substance (the solvent).
* Salt and Water: When you add salt to water, the salt crystals break down into individual ions (sodium and chloride) that are surrounded by water molecules. This process is called dissolving.
* Homogeneity: The resulting mixture is homogeneous because the salt is evenly distributed throughout the water. You can't see individual salt particles, and the mixture has a uniform appearance and composition.
Therefore, because salt dissolves in water to form a homogeneous mixture, it's classified as a solution.