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Product 14228

By: The Flinn Staff

Diffusion Demonstration Model for biology and life science will be loved because it visualizes difficult concepts of diffusion and membrane permeability.

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Students will love this functioning diffusion model. The semipermeable membrane in the center of the model allows the passage of “small” molecules while keep the “large” molecules trapped on one side of the membrane. Randomly shake the model and watch what happens! The dramatic increase in volume on one side will help students visualize difficult concepts of diffusion and membrane permeability. A real must when teaching diffusion!

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Analyzing and interpreting data

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
MS-LS1.A: Structure and Function
HS-PS1.B: Chemical Reactions

Crosscutting Concepts

Structure and function
Patterns

Performance Expectations

MS-LS1-2. Develop and use a model to describe the function of a cell as a whole and ways parts of cells contribute to the function.
MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.