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21 safe practical investigations suitable for students aged 11-18, many of which can be adapted for project work. The text provides a series of safe, tried and tested practical investigations. It is based on an earlier, out-of-print publication Practical Microbiology & Biotechnology for Schools (Macdonald,1987) but has been significantly modified to match current practice and recent curriculum changes. The book incorporates new material, including some open-ended investigations.