x HEAT 159 



Describe an experiment showing that water is a bad conductor of 

 heat. 



28. Describe carefully the manner in which the freezing and 

 boiling points on a thermometer are determined. 



29. Explain what is meant by specific heat. How would you 

 show that equal weights of two different substances give out different 

 amounts of heat when cooled through the same range of temperature? 



