What is the pH scale and how does it relate to household products? This web activity, suitable for whiteboard presentation or group or individual classwork includes: a fun drag and drop activity about the pH of products you might find in the home, information on soap-making and a great little animation showing how surfactants in shower gel remove oily dirt from the skin.
Teachers’ Notes for this resource may be found at: http://www.catie.org.uk/teachers-zone/faces-of-science/?utm_source=TES
This is just one section of the CATIE Faces of Science educational website for Key Stages 3 and 4 Science. http://www.catie.org.uk/facesofscience/?utm_source=TES