Curated OER
Blood Tonic
Students investigate the process of osmosis using fresh potato cuttings in saline solution. In this biology lesson, students explain the difference between hypertonic, hypotonic, and isotonic solutions. They collect data from the...
Khan Academy
Khan Academy: Molarity, Molality, Osmolarity, Osmolality, and Tonicity What's the Difference?
See how each of these terms tells us something different about a solution.
Khan Academy
Khan Academy: Tonicity Comparing 2 Solutions
Find out how tonicity is determined by ions that don't move across membranes and how it affects movement of water.