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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 ..
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A straight forward method of how to serially dilute a bacterial broth, and grow colonies, for calculating population density.
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Guidance on how to prepare ethanol/water, methanol/water and
propanone/water solutions.
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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..
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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..
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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..
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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.
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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.
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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..
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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..
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words matched: density, Water
Showing results 1 to 10 of 858