What is a thermometer?

Thermometer is a special tool for measuring temperature. ② The commonly used degree of day is Celsius, which is expressed by the symbol℃. ③ Practice mastering the correct reading method of thermometer. An instrument for measuring temperature is called a thermometer. We know that those who measure water temperature are called thermometers, and those who measure body temperature are called thermometers. We use a thermometer to measure the temperature on the weather calendar. (2) Thermometers have some of the same structures as other thermometers, including bubbles, liquid columns, scales and unit symbols, one of which is℃, which is pronounced℃. Many students seem to be very clear. As a result, various problems appeared in the process of inviting students to write the temperature in Celsius on the blackboard, such as writing small circles in front of numbers and small circles behind letters, so please observe the temperature in Celsius again before writing, and invite several students who are not serious to write on the blackboard. Deepen everyone's impression. (3) To read correctly, we must first know the scale range of the thermometer. Before each reading, please observe how much each large cell represents and how much each small cell represents, and then read.