This list provides a range of activities and demonstrations, together with background information and suggested teaching strategies, which explore diffusion.  The use of models and analogies here can aid understanding and students should be challenged to use a simple particle model to explain what they observe.

The resources link to the following topics:

  • diffusion in terms of the particle model
  • diffusion in liquids and gases driven by differences in concentration
  • Brownian motion in gases

Visit the secondary science webpage to access all lists: www.nationalstemcentre.org.uk/secondaryscience

Whilst this list provides a source of information and ideas for experimental work, it is important to note that recommendations can date very quickly. Do NOT follow suggestions which conflict with current advice from CLEAPSS, SSERC or recent safety guides. eLibrary users are responsible for ensuring that any activity, including practical work, which they carry out is consistent with current regulations related to health and safety and that they carry an appropriate risk assessment. Further information is provided in our Health and Safety guidance.