AS Test Preparation 

Paper 3: Practical skills

Important tips to help you ace paper 3

Dilutions and Protein Food Tests in Paper 3

How to do the Biological Molecules tests in paper 3

Tips for Biological Drawings in paper 3

Plan diagram of a leaf

10 Plan diagrams you have to know (with labels)

Drawing Unfamiliar Plan Diagrams

How to calibrate a microscope