Question

what is a thermometer?
what's found in it and also attach a diagram of thermometer from inside
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Answer 1

Answer: A thermometer is a device that measures temperature or a temperature gradient. A thermometer has two important elements: a temperature sensor in which some change occurs with a change in temperature; and some means of converting this change into a numerical value.

Answer 2

Answer:

A thermometer is a device that measures temperature or a temperature gradient. A thermometer has two important elements: a temperature sensor in which some change occurs with a temperature change; and some means of converting this change into a numerical value.

In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With temperature changes, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature.

Explanation:

diagram of thermometer is in attachment

hope it helps..