224 



Common Science 



FIG. 126. How should he connect them? 



Application 53. Dorothy was moving. " When they took 

 out our telephone," she said to her chum, Helen, " the elec- 

 trician just cut the wires right off." 



" He must have turned off the electricity first," Helen 

 answered, " or else it would all have run out of the cut ends 

 of the wire and gone to waste." 



" Why, it couldn't," Dorothy said. " Electricity won't 

 flow off into the air." 



" Of course it can if there is nothing to hold it in," Helen 

 argued. 



Which was right? 



Inference Exercise 

 Explain the following : 



321. It is very easy to get chilled when one is perspiring. 



322. Ice cream becomes liquid if you leave it in your dish too long. 



