Stick the thermometer in what you would like to measuse. Wait a while, then take the thermometer out and read where the lines match up.
Is a device used to measure temperature or temperature gradient using a variety of different principles.
Some thermometers, known as infrared thermometers or non-contact thermometers, use infrared technology to measure temperature without making physical contact with the object being measured. Traditional thermometers that use mercury or a digital display do not use infrared technology.
When you need them.
Doctors use body temperature thermometers to measure body temperature.
Alcohol thermometers use a liquid such as ethanol to measure temperature based on the expansion of the liquid, while digital thermometers use electronic sensors to detect temperature changes and provide a numerical reading. Digital thermometers tend to be more accurate and easier to read than alcohol thermometers.
You would use a thermometer to measure temperature in a laboratory setting. There are different types of thermometers available, such as digital thermometers, mercury thermometers, and infrared thermometers, each suitable for different applications.
thermometers
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The three main types of thermometers are liquid-in-glass thermometers, digital thermometers, and infrared thermometers. Liquid-in-glass thermometers use a liquid like mercury or alcohol to measure temperature, digital thermometers provide a numeric temperature reading, and infrared thermometers measure temperature from a distance using infrared technology.
Some thermometers use mercury, in these the liquid is silvery. Some thermometers use a red dyed alcohol solutioin.
Achohol, usually. Older thermometers use mercury, but that is too dangerous.
We ca use thermometers, thermocouples, resistance thermometers, pyrometers etc.
Digital thermometers, infrared thermometers, and alcohol or galinstan thermometers are commonly used as alternatives to mercury thermometers due to the environmental and health risks associated with mercury.