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This now inclduies some general information on food calorimetry as well as explaining something of nut allergy and a range of control measures which could be used to enable effective, relevant practic.. more
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The traditional procedure to make soap is hazardous because it requires heating quite concentrated sodium hydroxide solution, typically about 5 M (CORROSIVE) with the oil or fat.This guide covers two .. more
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Soap making is an ancient process, going back at least 4000 years. It is an example of saponification of an ester group, which is sometimes included in GCSE, A-level and BTEC courses. The conventional.. more
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A summary of queries to CLEAPSS concerning suggested practical activities which either did not work or were unduly hazardous. Ways around these problems are either included within this document or in .. more
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This document describes how to safely carry out unsaturation tests using bromine solution. There is guidance on minimising the release of toxic gas, and the intense and sometimes unpleasant odour of s.. more
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This guide describes a method of finding the iodine number for fats and oils using bromine that does not require a fume cupboard and can therefore be used as a class activity.
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A simple protocol used to show that leaves have been photosynthesising by testing for starch.
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Covers the fundamental activities that use plants, and includes advice on which plants to use and how to keep plants at school. 
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Guidance on buying, looking after, breeding and using small mammals to teach science, including recommended species and the appropriate numbers, size and varieties.Note: If you are considering of keep.. more
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Guidance on general laboratory equipment including balances, barometers, calorimeters, cells and batteries, centrifuges, spirit burners and other heating equipment, steam engines, gas cylinders and ge.. more
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