GENERAL THOUGHT QUESTIONS 

 FOR DISCUSSION AND REVIEW 



GROUP VI 



1. Is it true or false that the main purpose of the stems of plants is 

 to store up surplus food? 



2. What is osmosis? Is it different in its action in plants and in animals? 



3. Is it true or false that earthworms are pests and should be destroyed? 



4. Does sound travel fastest in air, in water, or in steel? 



5. In which of the following are vitamins found : salt meat, fish, raw 

 vegetables, canned goods, cookies, fresh fruits? 



6. If a physician told you that you needed a protein diet, name several 

 foods you might eat. 



7. Name several distinctly different examples of oxidation. 



8. Why are double windows helpful in keeping a house warm in winter? 



9. Is it true or false that the melting point of ice is the freezing point 

 of water? 



10. What makes a flame bright? 



11. Would you expect to be warm or cool if the temperature measured 

 64 Centigrade? 



12. Explain how the surface of an electric flatiron becomes hot. 



13. Is it true or false that the electricity which produces lightning is of 

 the same nature as that which produces electric light in our homes? 



14. Give a common example of changing electrical energy to chemical 

 energy. Explain. 



15. Name four modern inventions now in general use. Name the in- 

 ventor of each. 



16. How does sap travel from the roots to the tops of trees? 



17. With the help of labeled diagrams on paper or on the blackboard, 

 show how to demonstrate the digestion of starch. Tell what was 

 used, what was done, what happened to the starch and how you 

 proved that starch was changed. 



18. Why can you grip an object more firmly with a pair of pliers than 

 with your fingers? 



19. If Edison's main inventions suddenly were lost to us, how would our 

 daily lives be affected? 



20. Name several discoveries and inventions which have been of marked 

 help to farmers. 



21. Is it true or false that seeds should be kept in a warm, moist place 

 until needed for planting? 



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