138 NATUBE-STUDY LESSONS. 



8. Account for the spongy appearance of the interior 

 of a loaf of bread. 



9. Observe the interior to discover whether loaves are 

 always of the same color. 



B. Materials Used in Bread-Making. 



10. Observe bread-making at home or in a bakery. 

 («) Name the materials which are used. 



{b) About what weight of each is used in making 

 a four-pound loaf? 



(c) Why does the loaf weigh less than the sum of 



its ingredients ? 



(d) Why is the loaf heavier than the flour required 



to make it .-' 



(e) How many ounces of flour will make a four- 



pound loaf? 



11. From what natural sources is flour obtained ? 



12. {a) Visit a mill in your vicinity to observe the 



process of making flour. 

 {b) Observe where flour is kept at home to pre- 

 serve it in good condition. 



13. {a) Cut a grain of wheat in two and examine the 



parts of which it is composed. 

 {b) Describe these parts. 

 {c) From what part of the grain is white flour 



obtained ? 



14. From your inspection of a grain of wheat, infer 

 the diff"erence between the flour used in making a loaf of 

 wliite bread and that used in making a loaf of brown 

 bread. 



