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CONVECTION CURRENTS AND ANOMALOUS BEHAVIOUR OF WATER

Convection Currents and Anomalous Behaviour of Water

 

Objective:

To compare the thermal behaviour of water with that of other liquids, specifically alcohol and oil.

To point out the anomaly of water in the temperature interval 0°C – 4°C. To investigate convection currents.

Evangelista Torricelli (1608-1647)
Galileo’s scholar, is known mainly for discovering atmospheric pressure and constructing the first barometer. He built also one of the first alcohol thermometers. Mercury was used in thermometers only later. After him ‘Florentine thermometers’ were known and used all over Europe.


This set of experiments aims at investigating the process of heating a liquid that is initially frozen and then warmed up at room temperature. Temperature vs. time is measured at different levels inside the vessel containing the liquid.


[ Theory  |  Apparatus setup  |  Data acquisition  |   Data sample  |   PDF version of the module |  Evaluation form   |  Teacher's guide  |  Back to Experiments  ]



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