Question

explain why the liquid in a thermometer changes so that it can be used to measure a temperature

Answer 1

The liquid in thermometer expands in volume when the temperature is increased and it shrinks in volume when the temperature is decreased.

The expansion and shrinkage of the liquid is linear for a large temperature range. So it can be used to measure the temperature.

Answer 2

$\huge\mathcal{\fcolorbox{cyan}{black}{\pink{ĄNsWeR࿐}}}$

The liquid in thermometer expands in volume when the temperature is increased and it shrinks in volume when the temperature is decreased.

The expansion and shrinkage of the liquid is linear for a large temperature range. So it can be used to measure the temperature.

HOPE SO IT WILL HELP.....