CHAPTER V 

 WATER IN THE HOME 



Problems. i. To understand the cycle of water in 

 nature. 



2. What are the available sources of a home water supply? 



3. How can you tell safe from unsafe water? 



4. How can water be brought into the home ? 



5. What is a "solution"? 



Experiments. i. To find a method of purifying water (distillation). 

 2. To determine how air pressure can lift water. 



Project I. To MAKE A LIFT PUMP. 



Plan how you can make a working model of a lift pump or a force 

 pump. 



Suggestions. Large glass tubing and cylindrical lamp or gas 

 chimneys make good pump barrels. Valves are easily made by 

 using sheet rubber with a long tack or pin passing through it. 



Your report should contain at least two good diagrams showing 

 your pump model in action. 



Project n. How MUCH WATER is WASTED BY DRIPPING FAUCETS? 



Devise a method to find out how much water is lost from a leaky 

 faucet. How much could be lost in a year? 



If the water is metered, what is its cost? 



What would be the difference in gallons lost or in money value 

 per year in the following instances? 



1. When the leak is drop by drop. 



2. When the smallest possible stream is running. 



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