Does molecular mass affect the rate of diffusion? The simulation allows scholars to experiment with diffusion while varying the molecular mass and temperature. The timer automatically stops when a certain point is reached, making it easy to compare results.

Concepts

diffusion, molecular motion, temperature, molecular mass

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Additional Tags

science

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Instructional Ideas

• Discuss different molecules that interact this way based on their sizes
• Use this as an introduction to moles

Classroom Considerations

• Builds off previous simulations on molecular diffusion and temperature

Pros

• Includes the option to trace the movement of one molecule
• Works well as a large group demonstration, small groups in a computer lab, or even as homework in a flipped classroom

Cons

• None

Common Core

SL.9-10.2 SL.11-12.2 RST.9-10.4 RST.11-12.4