FOODS AND NUTRITION 405 



15. What is food? Is hay food? 



16. What is the advantage of a mixed diet? 



17. Does occupation have anything to do with the amount of 

 food required? Illustrate. 



18. What are two uses of food? 



19. Why do children become hungry more often than adults? 



20. What use is made of protein in the body? Of fat? Of 

 carbohydrate ? 



21. How many Calories would you consume in climbing stairs 

 representing a vertical distance of ten feet? 



.22. Which is more healthful whole wheat flour or white 

 flour? Why? 



23. Why is the use of ice an economy in summer? 



24. What causes food to spoil? 



25. Why do not alcoholic drinks quench thirst? 



26. What is digestion? 



27. What effect has cooking upon the appearance of food? 



28. What change is produced on vegetables by cooking which 

 makes them more digestible? 



