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Diffusion and Osmosis Lab: A Role-Playing Game

How do molecules move? Are solids really stationary or do their molecules move as well? What happens during a change of state at the molecular level? This game allows students to better visualize these ideas by becoming molecules. Simulation games like this are especially helpful for kinesthetic learners.

Print the charade cards and get started! Detailed written instructions and background information will give you support on how to teach this concept. Students begin the game with a limited number of choices as they solidify their understanding of how molecules move and how temperature affects this movement. From there they move onto change of state and finally more complicated examples of diffusion and osmosis. 

Concepts Addressed
• Molecules are always in motion, even in the solid state.
• Solids, liquids, and gases have distinct molecular organization.
• When materials change from one state to another, their molecules move in a characteristic way.

Materials Needed
a group of students, copies of the charade cards

Time Required
This activity initially takes about 30 minutes but can be done in as little as 10 minutes once students are familiar with the rules.

Student Sheets
• Scaffolded writing prompts & lab reporting 

Diffusion and Osmosis Lab: A Role-Playing Game


    Answer Keys and Teacher Notes address most questions and issues that might arise in this study—you shouldn’t have to do any outside research unless you want to.

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