This document defines key terms related to solutions, including solute, solvent, solubility, saturated solutions, and factors that affect solubility. It explains that solubility of solids generally increases with temperature, while solubility of gases decreases with temperature and increases with pressure based on Henry's Law. Characteristics of solutions, suspensions, and colloids are compared, noting that colloids exhibit properties between solutions and suspensions such as not settling out due to intermediate particle size. Examples of different types of solutions and colloids are also provided.