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The index of a thermometer is the scale or numerical reference used to indicate temperature readings. It can be in either Celsius or Fahrenheit, depending on the type of thermometer.

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1y ago

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How do you tell how hot or cold something is?

use a thermometer.We can feel how hot or cold something is. However, sometimes things are just too hot or cold for us to feel safely. At other times we need to know exactly how hot or cold something is. When we need to measure temperature correctly we need to use an instrument called a thermometer. This measures temperature in degrees Celsius [sometimes called centigrade] or degrees Fahrenheit. There are different types of thermometers for different situations. A medical thermometer, for example, needs to be very accurate. It measures in fractions of degrees. When we are ill, even tiny changes in temperature are important. Some thermometers use a liquid that moves up a very fine glass tube. Most room thermometers, and outdoor thermometers are like this. The liquid is either mercury [ which is poisonous] or coloured alcohol. As liquids get warmer they expand [get bigger], and move up the tube. Water expands too, but not as much as alcohol and mercury. Thermometers that might be used by small children are not made of glass. They use a digital display which lights up the temperature. Inside the displays are chemicals that change colour according to the temperature.


How does a minimum thermometer works?

A minimum thermometer works by using a small column of mercury or alcohol that moves up as temperature increases and down as temperature decreases. A small steel index marker within the column remains at the lowest temperature reached, allowing users to see and record the minimum temperature.


What is the plural of thermometer?

The plural of thermometer is thermometers.


What do you call an ear thermometer?

An ear thermometer is commonly referred to as a tympanic thermometer.


What is a glass bulb of a thermometer?

A glass bulb of a thermometer is the part at the bottom of the thermometer that contains mercury or colored alcohol that expands and contracts with temperature changes. This expansion and contraction of the liquid is what causes the thermometer to measure and display the temperature.

Related Questions

What is the use of the magnet in a 6s thermometer?

To reset the index


How do you tell how hot or cold something is?

use a thermometer.We can feel how hot or cold something is. However, sometimes things are just too hot or cold for us to feel safely. At other times we need to know exactly how hot or cold something is. When we need to measure temperature correctly we need to use an instrument called a thermometer. This measures temperature in degrees Celsius [sometimes called centigrade] or degrees Fahrenheit. There are different types of thermometers for different situations. A medical thermometer, for example, needs to be very accurate. It measures in fractions of degrees. When we are ill, even tiny changes in temperature are important. Some thermometers use a liquid that moves up a very fine glass tube. Most room thermometers, and outdoor thermometers are like this. The liquid is either mercury [ which is poisonous] or coloured alcohol. As liquids get warmer they expand [get bigger], and move up the tube. Water expands too, but not as much as alcohol and mercury. Thermometers that might be used by small children are not made of glass. They use a digital display which lights up the temperature. Inside the displays are chemicals that change colour according to the temperature.


What are the types of thermometer?

Celsius, Fahrenheit, and Kelvin.


Origin of the word thermometer?

Thermometer


How does a minimum thermometer works?

A minimum thermometer works by using a small column of mercury or alcohol that moves up as temperature increases and down as temperature decreases. A small steel index marker within the column remains at the lowest temperature reached, allowing users to see and record the minimum temperature.


How can you measure a body temperature?

What kind of thermometer you use to measure the body temperature


A device used to display the temperature?

a thermometer thermometer a thermometer


What is the plural of thermometer?

The plural of thermometer is thermometers.


Can you use the word thermometer in sentence?

The thermometer is broken.Put the thermometer under your tongue.


Different types of thermometers?

Celsius and Fahrenheit Thermometers Clinical Thermometers Ear (Tympanic) thermometers Pacifier Thermometers Underarm or Oral Thermometers Food Thermometers Outdoor Thermometers Mechanism of Different Types of Thermometers Mercury and Alcohol Thermometers Digital Thermometers Alcohol thermometer Beckmann differential thermometer Bi-metal mechanical thermometer Electrical resistance thermometer Galileo thermometer Infrared thermometer Liquid Crystal Thermometer Medical thermometer (e.g. oral thermometer, rectal thermometer, basal thermometer) Mercury-in-glass thermometer


Which apparatus is more accurate clinical thermometer or laboratory thermometer?

Lab thermometer.


What is a classroom thermometer?

A "classroom thermometer" is a thermometer assigned to be kept in a specific classroom.