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Science is Fun : Water Thermometer

Date: March 19, 2015 Author: hetiastuti Categories: Article

A thermometer is a device that measures the temperature of things. The name is made up of two smaller words: “Thermo” means heat and “meter” means to measure. And on Thursday, March 5th, 2015, we had an experiment about how the thermometer works. In thermometer there is liquid, could be mercury or alcohol, with reason that these two liquids can’t be frozen even in low temperature. However, the characters are the same, they grow bigger when heated and smaller when cooled, just like water. Inside the glass tube of a thermometer, the liquid has no place to go but up when the temperature is hot and down when the temperature is cold. Before we do the experiment, you need to prepare : a glass bottle, a straw, food colouring, dough, hot water, cold water and 2 buckets. Tipped colourful water inside the bottle, then put a straw inside it then closed the bottle using dough as the lit. Put the bottle into a bucket of hot water, the water in the bottle went up, while when you put back the bottle into the cold water, the colourful water in the bottle went down. It answers the experiment that if water gets heat, it will expandIMG_4879IMG_4881IMG_4878