Lesson Plan

Osmosis and Dialysis

This Osmosis and Dialysis lesson plan also includes:

How do you engage pupils in a discussion about osmosis without leaving them overwhelmed? By providing them with the tools to perform an exciting experiment, and they will see osmosis in action! Young chemists and biologists use a potato and common reagents to demonstrate osmosis, while relating this action to kidney dialysis and problems that can occur when the body does not adequately remove wastes.

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CCSS: Adaptable
NGSS: Adaptable
Additional Tags
Instructional Ideas
  • Be sure to post safety rules at each lab station
Classroom Considerations
  • Certain reagents are toxic if ingested, so use care while performing lab
  • Iodine will stain hands; consider providing gloves  
Pros
  • Simple experiment, yet applicable and engaging due to the integration of the dialysis piece
  • The nine-page packet comes with procedures, lab safety rules, student worksheets, and lab sheets for both the osmosis and dialysis portions of the resource
Cons
  • Assessment contains numerous open-ended questions and could be challenging for ESL learners
NGSS