130 Our Surroundings 



6. Give several causes of the variations of climate in a zone. 



7. Why is the rainfall usually greater on the ocean side of a range 

 of mountains than on the opposite side? 



8. Is it true or false that there is more danger from frost on a clear 

 night than on a cloudy night? Why? 



9. Describe briefly each of four principal kinds of clouds. 



10. Explain why clouds sometimes dissolve and disappear without rain. 



11. Account for the formation of clouds. 



12. What sort of clouds cause you to hasten to shelter? 



13. Discuss the benefits of rainfall. 



14. What is hail? Snow? Dew? Frost? 



15. Why will a shallow flooding of a field protect it against a threatened 

 light frost? 



16. Why will frost form on the windows of one heated home in winter 

 and not on those of another? 



17. Describe an experiment to illustrate the formation of dew. 



PROJECTS 



1. Prepare a labeled diagram showing the zones of heat. 



2. Construct a rain gauge, and find the amount of rainfall during a 

 shower. 



3. Make a weather chart for a week or a month. 



OUTDOOR OBSERVATION 



1. Read and record outdoor temperatures at your home each morning and 

 night for a week. Compare temperatures at the ground and at second 

 story level. 



2. Record your observations of cloud formations for a week, giving 

 character of clouds, direction of drift, and any other facts you dis- 

 cover. 



REFERENCES 



Elementary Meteorology Waldo 



Why the Weather? Brooks 



