They’ll be able to tell you roughly the temperature of the room, within 4 °F (−16 °C). The temperature is 70°F. After shaking down the thermometer, read the temperature shown in order to evaluate the effectiveness of your efforts. Celsius is used is most countries in the world - except the United States! Tip: If you ever break a thermometer be careful. Before we look at how to read a thermometer, lets first see how thermometer finds out the body temperature. You got it! Bring the thermometer close to the eye as shown in figure below in order to see the precise reading. Mercury thermometers are used in households, laboratory experiments, and … 1. In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. Look at the thermometer. The red mercury rises to the 70°F mark. The newest and most expensive thermometer on the market, temporal thermometers read heat coming from the temporal artery, which is right under the skin of your forehead. Sit your child on your lap, facing away from you. Mercury thermometers can be used to determine body, liquid, and vapor temperature. Celsius (°C) is another measure of temperature. Don't touch it. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Using a mercury thermometer – armpit method. Celsius Degrees. (2) If the thermometer reads 94º F (34.4º C) or above, continue to shake down the thermometer until a desired reading is shown. They are the fastest and probably the easiest thermometers to use. The spheres in the thermometer take a few minutes to float to the correct places. Read the Thermometer. However, they may read too low at times. The thermometer is made from a glass tube that is sealed from both ends so that no … Hold the thermometer by the top end and shake it down sharply until the mercury falls below the 35C (95F) mark. In most of the cases, we see thermometer using Mercury as a liquid to measure the temperature. Try to read this thermometer. Before using see that the temperature falls below the 37⁰C mark or the 98⁰F mark, the ideal human body temperature. (1) If the thermometer reading is below 94ºF (34.4º C), you have shaken down the thermometer sufficiently. These jerks help to bring the level of mercury down. On which mechanism does it work and what makes it provide us with accurate body temperature. If the bulb and vial are filled with a silver, metallic liquid, you have a mercury thermometer 2.While accurate, the mercury inside the thermometer is very dangerous if it comes in contact with skin 2.Take care in handling the thermometer so that it does not crack or break. 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