44 SCIENCE OF HOME AND COMMUNITY 



SUPPLEMENTARY QUESTIONS FOR CLASS DISCUSSION 



1. What advantages has the kerosene lamp over all methods 

 of lighting used previously ? 



2. In what ways are the burning of a candle and of a kerosene 

 lamp similar? In what ways are they different? 



3. Of how many illustrations of capillarity can you think ? 



4. In what ways is gas better than kerosene for lighting ? 



5. In what ways is electricity better than gas? 



REFERENCES 



Barber, First Course in General Science, Henry Holt and Com- 

 pany, New York City. Chap. i. 



Holland, Historic Inventions, G. W. Jacobs, Philadelphia. 

 Chap. 14. 



