44 EXPERIMENTAL GENERAL SCIENCE 



6. A cubic foot of water weighs 62.3 pounds. Could you carry a 

 cubic foot of gold? How much would it weigh? 



6. Aluminum is often called a light metal. Will it float or sink in 

 water? 



7. A vessel 10 by 10 by 10 cc. in size would hold how many grams 

 of water? 



8. How many grams of mercury would the above-mentioned vessel 

 hold? 



9. Find the weight of a liter of alcohol. 



10. How much heavier is a cubic centimeter of iron than one of cork? 



11. Which has the greater specific gravity, cream or milk? How do 

 you know? 



12. Which weighs more, a cubic centimeter of ice or a cubic centimeter 

 of water. How do you know? 



13. Do you infer that ice has or has not a density greater than 1? 



14. Why does olive oil float on water? 



15. Will iron float or sink in mercury? Why? 



16. Housewives often test the strength of brine by putting an egg in 

 it. An egg will sink in pure water. Explain why it will float hi brine. 



17. When the smoke from chimneys does not rise readily, is the air 

 light or heavy? How do you know? 



