Measuring the temperature of liquids quickly and with reasonable accuracy is made easier by using beakers with integrated thermometers. Two tough polypropylene beakers come in a pack from TTS, one holding 100ml and the other 250ml, both calibrated in units of 10ml. A strip on the side is marked between 10oC and 60oC in 5oC increments. As you pour liquid in, the strip rapidly changes colour until a number is illuminated. As well as a good approximation of the temperature of the contents, you gain a sense of how heat is conducted through the container itself. The pack of two thermometer beakers costs pound;2.95 from TTS Group, Nunn Brook Road, Huthwaite, Sutton-in-Ashfield NG17 2HU.
Tel: 01623 447800