Tooltip
These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.

Keeping Clean Unit Guide

This Salters’ Chemistry Course unit from the University of York Science Education Group covered:
* The use of soaps and soapless detergents.
* Emulsions and the action of emulsifiers.
* The hardness of water.
* The manufacture and use of cosmetics, shampoos.
* Toothpastes and household cleaners.

Core contents
KC1: How can we make a soap?
KC2: How easily does soap lather with different samples of water?
KC3: What causes hard water?
KC4: How do soaps and soapless detergents differ?
KC5: How can we clean and protect our skin?
KC6: What do we use to clean our hair?
KC7: What do we use to clean our teeth?
KC8: Designing and testing a household cleaner.
KC9: Marketing a household cleaner.

Show health and safety information

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.

Information on the permitted use of this resource is covered by the Category Three Content section in STEM Learning’s Terms and conditions.