Question

How does thermometer work?​

Answer 1

Answer:

u stick in something and it tells u the temperature. Or if u want a better answer then.....

A thermometer has a glass tube on both sides and it is filled with liuqid. When the temperature around the bulb gets hot the liuqid rises.

Answer 2

Answer:

for it to check for a fever there should be a button there and there different types so you can hold it against your forehead or there is one you but under your tongue or armpit.    

Explanation:

but for check how hot food is just shove it in the food