Curated OER
Semipermeable Membranes and Bioaccumulation
Beginning biologists place a drop of food coloring into water of differing temperatures to observe the effect on the diffusion rate. They remove the shells from raw eggs and then experiment with osmosis over the remaining membranes....
Curated OER
Osmosis
High schoolers investigate osmosis and diffusion in a liquid environment. In this osmosis lesson plan, students use dialysis tubing made into bags and filled with 3 different solutions. They observe the movement of water molecules into...
Curated OER
Love in the Time of Cholera
Students examine causes and treatment options for cholera. In this biology lesson plan, students model the osmotic basis of cholera using dialysis tubes. Students propose treatments for hypothetical patient.
Curated OER
Diffusion & Osmosis with Data Analysis
Students explore principles governing diffusion and osmosis. Students perform a dialysis tubing experiment. They obtain core samples of potato in varying concentrations of sugar-water to measure water potential of the potato cells....
Curated OER
Movement Across the Membrane (Diffusion)
Students investigate the concept of diffusion and how materials enter and leave a cell. For this movement across a membrane lesson plan, students use perfume, food coloring in water and a sugar cube in water to observe diffusion. They...
Curated OER
Dispersement of Particles: Diffusion and Osmosis
Students explore the dispersement of particles. In this science lesson plan, students describe the many ways in which particles move and transfer from one source to other areas.
Curated OER
Molecules Rock
Fourth graders engage in this interactive lesson which illustrates diffusion and osmosis and shows them that molecules of life move dynamically and powerfully. They must analyze their lab orally and in writing.