(1) If the thermometer reading is below 94ºF (34.4º C), you have shaken down the thermometer sufficiently. Mercury thermometers are used in households, laboratory experiments, and … Look at the thermometer. Hold the thermometer by the top end and shake it down sharply until the mercury falls below the 35C (95F) mark. The thermometer is made from a glass tube that is sealed from both ends so that no … Celsius Degrees. Before we look at how to read a thermometer, lets first see how thermometer finds out the body temperature. In most of the cases, we see thermometer using Mercury as a liquid to measure the temperature. However, they may read too low at times. Different models may have different instructions for use. In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. These jerks help to bring the level of mercury down. Read the Thermometer. You got it! The key is to not hold the thermometer in your hands because your hands will warm it up and give a skewed reading. Sit your child on your lap, facing away from you. Mercury thermometers can be used to determine body, liquid, and vapor 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. Tip: If you ever break a thermometer be careful. After shaking down the thermometer, read the temperature shown in order to evaluate the effectiveness of your efforts. Before using see that the temperature falls below the 37⁰C mark or the 98⁰F mark, the ideal human body temperature. Celsius is used is most countries in the world - except the United States! Keep in mind that Galileo thermometers are not super precise. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Try to read this thermometer. Mercury is toxic. Bring the thermometer close to the eye as shown in figure below in order to see the precise reading. The spheres in the thermometer take a few minutes to float to the correct places. They are the fastest and probably the easiest thermometers to use. To read a mercury thermometer, hold it between your finger and thumb and turn it until you can see the point on the scale. The temperature is 70°F. The red mercury rises to the 70°F mark. Using a mercury thermometer – armpit method. Don't touch it. (2) If the thermometer reads 94º F (34.4º C) or above, continue to shake down the thermometer until a desired reading is shown. Keep the thermometer under the arms or tongue in order to get the reading. 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. Celsius (°C) is another measure of temperature. Look at which mark the red mercury ends. They’ll be able to tell you roughly the temperature of the room, within 4 °F (−16 °C). On which mechanism does it work and what makes it provide us with accurate body temperature. 1.