30 scenario-based questions in which students classify solutions as Hypotonic (lower solute concentration than a reference — causing cells to gain water by osmosis) or Hypertonic (higher solute concentration than a reference — causing cells to lose water by osmosis). For AP Biology, chemistry, and anatomy/physiology courses. Use as a bell ringer, exit ticket, unit review, sub plan, homework, or test prep activity for the osmosis and membrane transport unit. No more printing or correcting, i