GENERAL THOUGHT QUESTIONS 

 FOR DISCUSSION AND REVIEW 



GROUP I 



1. Why does a basketball bounce when dropped on the floor? 



2. What would happen to a bar of iron if placed in pure oxygen? 



3. Are the greater number of springs on a hill likely to be situated near 

 the base or near the summit? Why? 



4. Does an inflated football weigh more than an uninflated one? 



5. Is it true or false that pure and clear water can vaporize from a 

 muddy pond? Why? 



6. Why does vapor from a locomotive whistle promptly disappear from 

 sight ? 



7. How would our lives be materially affected if energy could not change 

 its form? 



8. Complete these statements orally: 



(a) makes the mercury column of a barometer change its level. 



(b) Oxygen forms approximately per cent of the atmosphere. 



(c) is used to test for the presence of carbon dioxide. 



9. Why does water run down hill? 



10. Why is it difficult to dive into water to any great depth? 



11. Suggest four ways in which environment controls our lives. 



12. Name several ways in which we control our environment. 



13. Why are lifeboats sometimes equipped with distilling apparatus? 



14. Why does turning on a hot water tap in the kitchen on a cold morn- 

 ing cause a mist to form on the window? 



15. Why is it advisable to know what has caused a spot on clothing 

 before attempting to remove it? 



16. Is there any water power in a still pond? 



17. Is it accurate to state that dew "falls"? 



18. Why doesn't air disappear into the space beyond the atmosphere? 



19. Suggest an experiment to determine the amount of water in snow. 



20. Under what circumstances is it possible to carry around an open 

 pailful of gas? 



21. What has water to do with the odd formations in limestone caves? 



22. How is the sun's energy changed to water power? 



23. Would a rubber ball bounce as well if the inside air pressure were 

 the same as that of the atmosphere? 



24. Why is the rain which comes from the ocean not salty? 



25. Complete this statement orally: 



Two special properties of good shoe leather are . 



26. Name some advantages of labeling materials and supplies. 



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