Keeping Clean

The practical activities in this resource explore cleanliness through an investigative and problem solving approach. By using a variety of approaches, the activities were designed to encourage discussion about the sociological and environmental implications of keeping clean. The experiments can be carried out in any order and integrated into an existing scheme of work, and are ideal as part of a circus of activities around the classroom.

The activities cover observations of dust particles, mould, microscopy, air pollution, water pollution, sterile technique, water treatment and cleaning products.

Warwick Process Science was compiled by an experienced team of teachers from comprehensive schools, mainly in Leicestershire, in collaboration with the University of Warwick.

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Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.


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