76 GENERAL SCIENCE 



melt at about 94 F., and if butter does not melt at this 

 temperature, it has impurities in it. 



55. Meaning of Temperature. Temperature is only 

 the degree to which a body is heated. It is the relative 

 condition of a body with respect to the degree of heat 

 of other bodies. Suppose that a pint of water on the 

 stove has a temperature of 95 C. and that a two gallon 

 bucket full has a temperature of 95 C. Their relative 

 condition, respecting temperature, is the same, but do 

 they have the same amount of heat? Which quantity 

 of water would get hot quicker, a pint or two gallons, on 

 the same fire? Which would cool quicker after being 

 taken off the fire? Which would melt the most ice if 

 slowly poured on a 3oo-pound block? If the two gal- 

 lons of water on the same fire heat more slowly than 

 the pint of water, it must take more heat to raise the 

 temperature of the two gallons to 95 C. than it does to 

 raise the pint to the same temperature. If the two gal- 

 lons of water cool more slowly than the pint under the 

 same conditions, or if the two gallons melt more ice than 

 the pint of water, then the two gallons must have had 

 more heat than the pint of water when they were both at 

 the temperature of 95 C. 



A small room in winter can be heated to 21 C. in a 

 short time with a small fire, but to heat a large room like 

 an auditorium to 21 C., in winter, would require several 

 hours with a large fire. Then which room will have the 

 more heat in it when both are 21 C? Which one will 

 feel the warmer? Which will take longer to cool if only 

 one door is opened, the auditorium or the small room? 

 Why? 



From these two observations it can easily be seen that 

 the temperatures of the two quantities of water and the 



