Let's diffuse the situation. Delight learners with a video to introduce a new term. Show the quick clip to overview the definition of diffusion and provide a visual representation of the concept of diffusion.  

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Instructional Ideas
  • Demonstrate with food coloring and beaker of water
  • Ask pupils to come up with their own scenarios of diffusion after viewing the example
Classroom Considerations
  • Use additional resources to develop the concept as this only provides a definition
  • Available as a resource to anyone with Internet access
  • Very concise video does not go into much detail on the concept