Unit Review – Pure Substances and Mixtures Name: _______________________ Test Date: ____________________ Terms and Definitions: matter particle theory solid liquid gas pure substance mixture mechanical mixture heterogeneous mixture solution homogeneous mixture solvent solute dissolves soluble insoluble concentration concentrated solution dilute solution saturated unsaturated solubility sorting floating settling sieve sieving filter filtration sewage evaporation distillation Notes: 1. Be able to distinguish between pure substances and mixtures. 2. Be able to identify examples that would be used for each method of separation – mixtures and solutions. 3. Know all aspects of the particle theory and be able to apply them to various concepts of mixtures and pure substances, such as how particles are arranged in the three states of matter. 4. Know the formula for solubility and how to calculate solubility. 5. Know what common solvents are, and the know most common solvent in our everyday life and in our bodies. 6. Identify the difference between solvents and solutes, and what kind of solvents would dissolve quickest, based on temperature. 7. Identify what three things effect the rate of dissolving, and apply to how to make various solutions (such as iced tea or chocolate milk). 8. Be able to apply any of the concepts taught to everyday life.