1. How can you prove that beverages are not real foods? 2. What is tea? What is coffee? What are chocolate and cocoa? 3. Why are tea and coffee, if stewed, bad for the digestion? 4. Why is it better for you to let these drinks alone? 5. How is alcohol made? 6. How is wine made? beer? cider? whiskey? 7. When does fermentation stop, and for what reason? 8. What is the difference between whiskey and brandy? Why are these the most harmful of these drinks? 9. Explain the effect of alcohol on the digestion. 10. Does it increase the warmth of the body? 11. Does it increase our working power? 12. How is it that at first people thought that alcohol was helpful, when really it was not? 13. What is the effect of alcohol on the nervous system? 14. Can the man who drinks alcohol tell how, or to what extent, it is injuring him? 15. Is alcohol a food or a medicine? 16. How does alcohol usually affect the mind and character? 17. Why is smoking a foolish habit? 18. Why is it harmful for boys? 19. What is nicotine? 20. What proof have we that smoking stunts growth? 21. How is it likely to hinder a boy's career?
CHAPTER [XI]
1. Where does the real "eating" take place in the body? 2. How is the food carried to these parts? 3. What does the name "artery" mean? 4. What are veins? 5. If you examine blood under a microscope, what will you find in it? 6. What are the uses of these two kinds of little bodies (corpuscles)? 7. Explain the process of inflammation. 8. Draw a diagram or rough picture showing the route of the blood through the heart and body. Mark the vena cava and the portal vein. 9. What are the capillaries, and what does the name mean? 10. Why do the veins have valves? 11. Explain how the different parts of the heart act, while they are pumping and receiving the blood. 12. How many strokes of the heart-pump are there per minute in a man? a woman? a child? 13. Which part of the heart has the thickest muscle and why? 14. Where are the strongest valves? 15. What blood vessels carry the blood to and from the lungs? 16. What blood vessel carries the blood from the heart over the body? 17. When you press your hand to the left side of your chest, what movement do you feel? 18. Where is the best place to feel the pulse? Why? 19. Which are generally nearer the surface, arteries or veins? Are they near each other? 20. Why does the heart beat faster when you run?
CHAPTER [XII]
1. Why is it bad for you to study or exercise while you are eating, or right after eating? 2. How does overwork, or over-training, affect the heart? 3. What kind of play or exercise strengthens it? 4. How does good food help it? 5. What is the best way to avoid heart diseases, rheumatism, consumption, and pneumonia? 6. How does outdoor air help heart-action? 7. How do alcohol and tobacco injure the blood system and heart? 8. Why is alcohol particularly bad for underfed and overworked people? 9. At what two points is the blood system most likely to give way? 10. What may cause this breakage, or leakage? 11. What "catching" diseases often cause organic disease of the heart? 12. Why should heavy muscular work or strain be avoided after an attack of one of these diseases? 13. How may valvular heart trouble be remedied? 14. In what way are the nerve and blood systems connected? 15. What signal have we that we are beginning to over-exercise the heart? 16. What do we mean by "tobacco heart"? 17. Tell how to take care of the heart.
CHAPTER [XIII]
1. How long can an animal live without eating? 2. How long can an animal live without breathing? 3. Why is your body like a sponge? 4. What are cells? 5. How do they get their food? 6. How many kinds of waste come from the body cells? 7. How is each kind carried away from the body? 8. What does the blood carry from the lungs to the body cells? 9. Why does it not carry air? 10. What process keeps your body warm? 11. What happens if the body cannot get oxygen? 12. How are the human lungs formed? 13. What is the windpipe? What are the bronchi? 14. Draw a picture of the lung-tree showing how the tubes branch. 15. What is at the end of each tiny branch? 16. How do the windpipe and the esophagus differ in form? 17. Why is the windpipe stiff? 18. In what four ways is the air you breathe out different from that which you took in? 19. Why does lime-water become milky when you breathe into it? 20. When you run, why do you breathe more quickly? Why does your heart beat faster? 21. How can you improve your "wind"? 22. In fever, why do you breathe more rapidly? 23. How do the ribs and muscles help in breathing?
CHAPTER [XIV]
1. Why is "caged air" dangerous? 2. How is outdoor air kept clean and pure? 3. What is air made of? 4. In what ways do people poison the air? 5. How do plants help to clean the air? 6. What is the best way to ventilate a room? Why? 7. Why do you have recess? 8. How does impure air make children look and feel? 9. Why is an open fire not the best means of heating and ventilating? 10. See if the room you are now in is properly ventilated. Why, or why not? 11. What are disease germs? 12. Why is dusty air unwholesome? 13. What is the safest way to clean a room? 14. Name three groups of disease germs that float in the air. 15. Name three ways in which you can protect yourself against these germs. 16. What is a cold? 17. What is the best way to cure a cold? 18. How can you prevent colds? 19. What causes consumption (tuberculosis of the lungs)? 20. Does the tubercle bacillus attack other parts of the body? 21. Why should a consumptive hold a cloth before his face when coughing? 22. Why should his sputum be burned? 23. Why should he go to a camp or sanatorium? Give two reasons. 24. About how much money could this country afford to spend in fighting consumption? Why? 25. Why need we no longer dread it as people did twenty-five years ago? 26. What methods are used in curing the disease? 27. What methods are used for preventing it? 28. Give two reasons why spitting should be prohibited. 29. What will fresh-air and sunlight do to the disease germs in the dust? 30. What do we know about the germs of pneumonia? 31. Do those who use alcohol stand a good chance in fighting pneumonia? 32. How may pneumonia be prevented?