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. 



