THE MEASUREMENT OF TEMPERATURE 53 



16. What would be the temperature of boiling water in Centigrade 

 degrees if the Centigrade scale began at absolute zero? 



16. What would be the temperature of boiling mercury on the absolute 

 scale? 



17. What temperature is -40C. on the Fahrenheit scale? 



18. If the thermometer bulb were made of a substance that expands 

 faster than mercury, what effect would this have on the column of 

 mercury? 



19. When the thermometer bulb is plunged into hot water the mercury 

 at first falls. Why? 



20. The temperature of the sun is estimated to be about 7000C 

 How hot is this on the Fahrenheit scale? 



