Diffusion and Osmosis
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Diffusion: High School Biology Lab Part I: Easy Science Experiment
The focus of the first part of this lab is diffusion. The purpose of this video is to help students understand the meaning and process of diffusion.
This video biology lab demonstrates the process of Osmosis using eggs to represent cells.
Four eggs are placed in isotonic, hypotonic, and hypertonic solutions and air. View this video to find out what happens.
Paul Andersen starts with a brief description of diffusion and osmosis. He then describes the diffusion demonstration and how molecules move over time. He then explains the concepts behind the osmosis lab and how potatoes are affected by increasing sucrose molarity.
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