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JSSS Teacher support material Thermocolour paper Thermocolour paper changes colour depending on the temperature, providing a striking visual means of displaying temperature changes. The film responds quite rapidly. It can be used to illustrate many concepts linked with heat and temperature, including friction, conduction, insulation, feeling hot and cold, convection, radiation, evaporation and the greenhouse effect. Tips on its use Before students use the themocolour paper for the first time, they should spend a little time becoming familiar with it. Putting the cards on the fingertips allows the range of colours produced as the film warms up to be seen – from black to brown to green to blue. It is important to note that the dark blue colour seen when it is hottest is quite similar to the black colour seen when it is cold. Possible uses OB5 …conversion of chemical energy in food into heat energy OB64 ...how human activity affects the environment...negatively (eg greenhouse effect) OC2 ...evaporation OC6 ...metals conduct...heat OP18 ...sun is primary source of energy... OP20 ...chemical energy to electrical energy to heat energy... OP30 ...bodies radiate heat... OP31 ...transfer of heat energy by conduction, convection and radiation... OP32 ...good and bad conductors of heat...insulating ability of different materials... OP33 ...light is a form of energy... OP34 ...light travels in straight lines... OP53 ...heating effect...of an electric current Independent investigation Source Mail order from: Middlesex University Teaching Resources, Unit 10, The IO Centre, Lea Road, Waltham Cross, Herts, EN9 1AS, UK; Order online from: http://mutr.co.uk -1-
