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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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A simple practical activity to discover the diversity of microbes swabbed from suitable locations.
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Instructions on how to make a spreader for bacterial lawn plates.
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A straightforward method investigating the effect of UV exposure on the growth of UV-sensitive yeast.
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An updated method of staining gram-positive and gram-negative bacteria using basic equipment. 
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Outlines the most common cultures of bacteria and fungi used in microbiology, and how to store cultures.
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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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Editorial - safety who's responsibility is it?, website news, primary liaison/transition ideas, CE markings and what they really mean, top ten issues found when auditing Science and D&T, Petrifilm fro.. 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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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
words matched: bacterial, colonies

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