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This Diffusion Across a Semipermeable Membrane interactive also includes:
Semipermeable membranes allow water to go through—but not larger molecules. The simulation encourages pupils to adjust the membrane pore size to understand how this works. It also provides a way to trace the movement of a single molecule.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Have pupils work in small groups, or individually if computer access allows, and take notes on the size of each molecule and the size of the pores as they experiment
Classroom Considerations
- Use when teaching about semipermeable membranes
- Relies on prior knowledge of diffusion
Pros
- Provides a built-in timer
- Requires very little class time
Cons
- None