Curated OER
Mystical Membrane
High schoolers investigate osmosis, diffusion and a semi-permeable membrane. In this cell membrane lesson plan, students observe the movement of molecules out of a bag filled with sugar and starch into a beaker of water. They test the...
Curated OER
Diffusion Across a Selectively Permeable Membrane
Students investigate how water passes through cell membranes. In this biology lesson, students differentiate osmosis and diffusion. They illustrate the movement of water in both processes.
Other
Energy of Seawater Desalination
This site gives information about energy needed for desalination. It gives formulas on how to determine these figures.