| Select | | View | Download | | Practical 5.1 Demonstration of the action of the enzyme catalase | | |
| Worksheet (Teacher's version) | | |
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| e-Quiz (with Google Forms) | | |
| Practical 5.2 Investigation of the effect of temperature on enzyme activity | | |
| Worksheet (Teacher's version) | | |
| Worksheet for students | | |
| e-Quiz (with Google Forms) | | |
| Practical 5.6 Designing an investigation to compare the effectiveness of different biological washing powders | | |
| Worksheet (Teacher's version) | | |
| Worksheet for students | | |
| e-Quiz (with Google Forms) | | |