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weather instu
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weather instuments
Thermometer
In January 1 ,1638 the thermometer was invented.It tells you how cold it is or how hot it is outside.
This is a thermometer you see a F that means Fahrenheit you see a c that means Celsius.That red liquid is called alcohol .People in the united states use because we do not use the metric system.
Thermometer
It is a tube that has alcohol in it.when it gets hot it starts to boil and it starts to move up because is boiling so it expand and when it is cold it starts to freeze and it goes done.
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