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Science Clips Investigates Micro-organisms Clips

  1. The importance of handwashing in food hygiene (signed)

    Duration: 04:48

  2. The importance of handwashing in food hygiene

    Duration: 04:49

  3. Sir Alexander Fleming - the discovery of penicillin (signed - dramatisation)

    Duration: 03:13

  4. Sir Alexander Fleming - the discovery of penicillin (dramatisation)

    Duration: 03:11