A complete overhaul on the Edexcel pH and Enzymes Core Practical were students use disposable dimple tiles, reliable salivary amylase and re purposed Covid19 dropper bottles to take accurate data for the practical.
Although this practical comes with added risks due to using salivary amylase results are reliable and can be used as a demonstration with a particularly challenging class or a full practical.
This sheet comes with full notes on how to set up and run the practical as well as methods and RA’s
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£2.00