trafton] OUTLINE OF NATURE-STUDY 147 



Winter 

 I. Plants and Animals in Winter. 



1. Winter decorations — flower of Roman hyacinth from bulb planted 



in fall. 



2. Tree studies. 



A. Buds of trees. 



B. Enemies of trees and forests. 

 Problems — 



What makes the hyacinth a desirable flower to have in the room? 

 What trees can we name thru the difference in their buds? 

 What are the chief enemies of trees? 



3. How plants spend the winter. 



4. Winter Birds. 



A. Value of birds. 



B. Helping our bird friends by feeding them. 

 Problems — 



What do birds do for us? 



How can we help the winter birds? 



II. Health Studies; keeping the body well and strong. 



1 . Foods. 



A. Cooking, needs, ways. 



B. Preservation of foods; in ice chest, cellar, by canning, dry- 



ing, salting. 



C. Difference in food according to seasons. 



D. Compare food of plants with food of animals. 



E. Digestion of foods, solubility, use by body. 

 Problems — 



How does cooking make foods better? 



In what ways may foods be kept from spoiling? 



How does our food change from season to season? 



How does the way in which plants get their food differ from the way 



in which animals get their food? 

 What happens to our food after it is swallowed? 



2. Heating and ventilation; how to get a supply of warm, fresh air. 



Ways of heating; fireplace, stove, hot air furnace, hot water, 



steam. 

 Use of thermometer. 

 Composition of air. 

 Things that spoil pure air: 



Tobacco smoke, lamps, gas jets and ranges, people, dust, bad 

 odors from unclean objects, such as clothing, bodies, teeth, 

 decaying food. 

 Effect of impure air on people. 



How to get pure air in the sleeping room, home, the schoolroom. 

 How the air in the room moves; drafts. 

 Amount of air needed. 



