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Most thermometers work on the principle that elements and compounds expand as their temperature increases. Liquids or solids that expand at a constant rate over the desired temperature range are used so that the amount they have expanded can be measured and compared against known expansion rates to determine the temperature.

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7y ago
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13y ago

LIQUIDS EXPANDS AS IT GETS WARMER

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13y ago

liquid expands as it gets warmer

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Q: On what principal do most thermometer work?
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