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PP154 - Using Hope’s apparatus to investigate water density
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This activity is designed to demonstrate that water reaches its maximum density at 4°C. This unusual behaviour  relates to hydrogen bonding and explains why ponds freeze from the surface down and not .. more
words matched: Density, water
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PP123 - Serial dilutions for calculating population density of microbes
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A straight forward method of how to serially dilute a bacterial broth, and grow colonies, for calculating population density. 
words matched: Density, water
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RB002 - Alcohol / water and propanone / water solutions
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Guidance on how to prepare ethanol/water, methanol/water and propanone/water solutions.
words matched: Density, water
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Bulletin 102 - summer 1998
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This edition includes notes on fume cupboard testing, working safely with wood dusts, not using mains-powered open wire radiant heaters, dissecting butchers' bits, an introduction to microscale chemis.. more
words matched: Density, water
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Bulletin 116 - Spring 2003
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This edition includes notes on a serious accident which happened to an inexperienced teacher, exploding spirit burners, drinking bottled water in science lessons, and an  accident during an open eveni.. more
words matched: Density, water
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PP042 - Making nylon – demonstration
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This demonstration shows preparation of nylon, where solutions of 1,6- diaminohexane in water and an acid chloride in an immiscible solvent are brought together. The nylon polymer forms at the interfa.. more
words matched: Density, water
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Bulletin 104 - Spring 1999
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This edition includes notes on an upcoming total eclipse, sodium and potassium shooting out of the water trough during demonstrations, and problems with Bunsen tubing.
words matched: Density, water
Members only resource
GL208 - Greenhouses
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Updated from section 14 of the CLEAPSS Handbook, this provides an overview of choosing and using a greenhouse. In particular, it covers automatic watering systems, often essential for school holidays.
words matched: Density, water
Members only resource
Handbook - Section 13 - Chemistry Topics
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Guidance and information on a range of chemicals, chemistry topics and apparatus including handling chemicals, chemical reactions, gas cylinders and syringes, molecular models, plastics, advanced chem.. more
words matched: Density, water
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SRA037 - Investigating the properties of gallium metal
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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.Note:- These.. more
words matched: Density, water
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