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This is a customisable letter for schools to send to parents to request permission in advance of students taking a small sample of their own blood.
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This edition includes notes on blood and cheek cell sampling, inappropriate dumping of waste chemicals, and the role and value of the CE mark on equipment.
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Updated from section 14 in the CLEAPSS Handbook, this offers practical advice on obtaining and studying blood, including human blood. It describes safe procedures for taking human blood and dealing wi.. more
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A set of frequently-asked questions, and their answers, on school biology activities. Includes materials from butchers, cheek cell sampling; human body fluids, microbes and others. 
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This small-scale analysis activity uses simple equipment and provides a useful introduction to the principles of titration. Quantities of the reagents are measured by mass (rather than volume) and the.. more
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Guidance on the preparation and use of the required solutions for the determination of the dissolved oxygen content of water samples using Winkler's method. The procedure described avoids the use of s.. more
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The low melting point of gallium metal is demonstrated, eg by using warm water to melt a sample or by making it into a spoon shape and showing that it melts when used to stir a cup of tea.
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Gives guidance on general fieldwork including specific measurements and techniques. Detailed guidance is included on measuring substances in the soil, water and air, and electronic measurements such a.. more
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In this term's issue: From the Director.. CLEAPSS is on the MOVEGetting in touch with CLEAPSSCOVID-19 Update - Returning to practical workafter COVIDBiological samplingNew practical procedures for ion.. more
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Concentrated sulfuric(VI) acid reacts with solid samples of Group 1 halides (chloride, bromide or iodide) to form hydrogen halide gases and other products. The activity illustrates the behaviour of co.. more
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Showing results 1 to 10 of 241
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