CLEAR & SIMPLE Solubility Curves - Saturated, Unsaturated, Supersaturated Solutions - This video explains how to interpret solubility curves and read solubility curves. It discusses saturated, unsaturated and supersaturated solutions. This is an essential component of the unit on solutions/mixtures of substances. In a nutshell, unsaturated solutions have points below the line on the graph, saturated is on the line and supersaturated is above the line on the graph.