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GL243 - Water purification buying guide
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A short overview of the common methods of water purification in school laboratories, include pros and cons. This will be useful for any teacher or technician looking to buy a new water purification sy.. more
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R010 - Water purification
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Gives very detailed guidance on what water purification entails, and when pure water is needed in school science. It suggests the advantages and disadvantages of the methods of purification available .. more
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PP029 - Effects of chemicals on permeability of red onion cell membranes
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A simple investigation, with clear procedural advice, on looking at how chemicals affect the cytoplasm of red onion epidermal cells.
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GL363 - Activities using plants
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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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GL366 - Agars for diffusion
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Guidance outlining the different types of indicator used for making agar cubes for diffusion. It covers how to prepare, use and store the agar. 
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Tech Tip - Cutting beetroot discs
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A quick method for cutting even-sized beetroot discs
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Bulletin 094 - Autumn 1995
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This edition includes notes on a prosecution because of a failure to adequately record risk assessments, an eye accident involving sodium hydroxide, advice on Bunsen tubing, a problem with a filter fu.. more
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Bulletin 161 - Spring 2018
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Directors editorial, Hazcards 2017 update, changes to the Ionising Radiation Regulations, Good Practical Science - the Gatsby Foundation report, dealing with 'Acid' attacks, IRM vs First Aid, more pro.. more
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GL352 - Managing practical work in non-lab environments (COVID-19 pandemic)
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The CLEAPSS Helpline receives a number of calls about the teaching of science practical work in non-lab environments. In the normal running of a school we advise against doing this due to additional r.. more
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Handbook - Section 15 - Biology Topics (K-Z)
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Guidance and information on a range of biology topics and equipment such as microbiology, tissue culture, biology teaching models, plants, seeds and pesticides, ponds, preserved specimens, respiromete.. more
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Showing results 1 to 10 of 16
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