Answers

2014-02-22T08:02:39+01:00
When the bulb of a thermometer is dipped into ice-cold water, the glass contracts.
The liquid contracts too, but because that of the glass is faster, it pressurizes the liquid, and the volume is seen to increase.
As the liquid loses more heat and contracts, the volume is seen to decrease.

Thus, the liquid first rises, and then falls.
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