The liquid commonly used in laboratory thermometers is mercury. Mercury expands and contracts evenly with temperature changes, making it ideal for accurate measurements. It is visible in the thermometer because it is a shiny, silver liquid that moves along the ...
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After using a thermometer, it should be cleaned carefully to ensure it remains hygienic and accurate. First, wipe the thermometer with a soft cloth or tissue to remove any moisture. Then, use a disinfectant or a mild soap solution to ...
The boiling temperature of water is lower at high-altitude places because the atmospheric pressure is lower than at sea level. At high altitudes, the air pressure is reduced, which means water molecules can escape into the air at a lower ...
The smallest temperature value a thermometer can read is called the least count. It refers to the smallest division or increment on the thermometer’s scale. For example, in a thermometer with a least count of 1°C, it can measure temperature ...
Air temperature is important for weather reports because it helps determine the overall weather conditions, such as whether it will be hot, cold, or moderate. It affects how we feel, what clothes we wear, and how weather phenomena like rain, ...
98.6°F is used as the standard average body temperature because it is considered the normal temperature of a healthy human body when measured orally. This value was established through research by a German physician, Carl Wunderlich, in the 19th century. ...
A weather thermometer is used to measure the temperature of the air in the atmosphere. It helps us understand how hot or cold the weather is at a particular time. This information is important for predicting weather patterns and planning ...
Body temperature readings taken from the armpit are generally lower than those taken from the mouth or rectum. This is because the armpit is not in direct contact with the body’s core, and the temperature there is influenced by the ...
The maximum temperature of a day is recorded using a maximum thermometer. This type of thermometer is designed to register the highest temperature reached during the day. It typically has a special liquid, such as mercury, that expands with heat. ...
To safely check for a fever without a thermometer, you can use the back of your hand to feel a person’s forehead, neck, or chest. If these areas feel unusually hot to the touch, the person may have a fever. ...