Diffusion

This lesson is suitable for the AQA GCSE Biology and AQA Combined Science: Trilogy course looking at diffusion and factors that affect the rate of diffusion of substances in and out of cells.

*This lesson also includes a practical idea to show the rate of diffusion with different tea bags (Tetley, Yorkshire Tea and PG Tips) - which can be used to demonstrate temperature or surface area. *

When using this resource:
‘Knowledge Checks’ should be completed on Mini White Boards.
The re-teach slide is there in case it is needed from the ‘Knowledge Check’ - hence, can be skipped over if not needed.
Check for Understanding questions should be completed on Mini White Boards.