PowerPoint and worksheet resources for a lesson on Diffusion and Surface Area to Volume Ratio from Unit 1: Cell Biology of the AQA Biology course. This includes suggestions on demonstrations and a practical script for investigating diffusion with agar jelly. There are enough resources here for at least two full lessons. Lesson is aimed at low-mid ability students, but can be easily adapted for those of higher ability (including a version of the practical table, which is already included in the practical script).
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