Question

How does a thermometer works ?
Tell if you know.​

Answer 1

Answer:

Both mercury and alcohol grow bigger when heated and smaller when cooled. Inside the glass tube of a thermometer, the liquid has no place to go but up when the temperature is hot and down when the temperature is cold. Numbers are placed alongside the glass tube that mark the temperature when the line is at that point.

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Answer 2

I hope that help you ☺️