This is a unit (4 lessons) for filling the AQA required practical although can be easily used for other specifications. The method used are the recommended practical methods published by AQA. The lessons are as follows: 1) Testing biological and non biological detergent on protein 2) Optimum conditions 3/4) Effect of pH on amylase break down of starch This has been designed as part of a year 9 scheme of work which have been fully undated to cover the new AQA specification, change in assessment objective weightings and mathematical requirements. Please leave a review of these resources