They're not supposed to do that, any more than two rulers should give different lengths.
If two rulers give different lengths, or two scales give different weights, or two
thermometers give different temperatures, then at least one of them is wrong,
and maybe both are.
Until the advent of digital thermometers, liquid ones were used in most domestic situations: to measure the air temperature, body temperature (to check for fever), cooking temperatures, fridge temperatures (to ensure that they were cold enough).
This is gobbledygook.
a themometer
Yes, it can.
for measuring temperature
To measure temperature
themometer
themometer
because that is far the degrees goes on earth. otherwise 200 degrees or over we all as humans will die or be dead. or the mercury themometer will explode.
Galileo did not invent the thermometer. He invented and developed several kinds of thermoscopes, which are a related but distinctly different class of instrument.
Because they have different chemical properties and boil at different temperatures
In a laboratory, at home, etc.