Gas Mixtures and Movements

Why do balloons go flat over time? The answer lies in the behavior of gases! Introduce young scientists to diffusion and effusion with a video. Pupils learn the composition and partial pressures of atmospheric gases as well as how the scent of perfume travels from one end of a room to the other.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Follow up the video with a simple diffusion demonstration
  • Incorporate the resource into a lesson about Dalton's Law of Partial Pressures
Classroom Considerations
  • Review properties of gases as an introduction to the video
  • Visual aids that demonstrate diffusion and effusion make the concepts easy to differentiate
  • The narrator incorporates Dalton's Law of Partial Pressures into the resource to make for a great introduction to the gas laws
  • None
Common Core