112 NATURE STUDY- BY GRADES 



When does sleet occur ? At opportune times study with care 

 each form of precipitation. 



Discuss in turn the good that comes to man from rain and 

 snow. Compare the rainfall on arid regions with that of 

 more humid places, and the results to vegetation and crops. 

 Mention also damage done by floods caused by too much 

 rainfall. Also tell how hailstorms are at times so violent as 

 to destroy crops, kill animals, and do other damage. 



LESSON XXXVI 

 THE SEASONS 



Name the four seasons. Describe each. Tell some of the 

 effects that each has upon man ; upon animals ; upon plants. 

 What games do boys play in the spring? in summer? in 

 autumn? in winter? Which season do you enjoy most? 

 Which two are nearest alike in weather and temperature? 

 Which are the opposite of each other? Where is the sun at 

 noon in the summer time ? Where is it at noon in the winter 

 time? What is the effect of this difference in position? 

 What month has the longest days? What month has the 

 shortest days? How do these months compare in tem- 

 perature ? 



Describe the daily motion of the sun. What part of the 

 day is generally coldest? Why? What part is warmest? 

 Why? How does the sun influence these changes? De- 

 scribe the sun's annual motion. What is the effect of this 

 motion upon the heat we get from the sun during the year ? 

 When the sun is above us, how 'is it situated for people far 

 south of us? When the sun visits and warms us, it leaves 

 them cold. When it goes south and shines directly on them, 

 it leaves us cold. 



