36 NATURE STUDY, BY GRADES 



Where does most snow fall, upon the mountains or in the 

 valleys? When much snow falls upon a steep roof, what 

 sometimes happens ? When much falls upon a steep moun- 

 tain side, what sometimes happens there? Discuss snow- 

 slides and avalanches, and tell simple stories connected with 

 them. What becomes of the snow? When does it melt? 

 What does it form when it melts? Discuss the uses of our 

 mountain streams for drinking, irrigation, etc. 



NOTE. A fuller discussion may be given in winter after a snow- 

 storm. 



LESSON IV 



% 



THE WEATHER TEMPERATURE 



Why does it not snow in summer? What is the chief dif- 

 ference between summer and winter ? If snow should begin 

 to fall on a hot summer's day, what would happen to the 

 snowflakes before reaching the ground? Why? 



Where does the earth's heat come from? Which is 

 warmer, day or night? What parts of the day are coldest? 

 What part of the day is hottest ? Where is the sun at noon ?. 

 in the morning ? 



What effect has the wind upon temperature ? What winds 

 are coldest ? Do clouds make it warm or cold ? 



Do plants grow better in warm or cold weather ? Which do 

 animals like better ? What do we do to keep ourselves warm 

 in winter? Is it warmer or colder when it storms? Can 

 you tell when it is going to rain ? How ? 



Have the pupils foretell a coming storm, and describe the 

 leading features. Show them pictures of summer scenes and 

 winter scenes. 



