The Ocean ; what it Supplies. \ 7 



14. Now look at the chart, and you may see 

 vapor, which is represented as rising from the 

 ocean, blown or carried by the wind over the 

 land (following with your pointer), and entering 

 air that is cooled by these cold mountains. 

 As cool air cannot hold as much vapor or mois- 

 ture as warm, dry air, some of the moisture falls 

 in the form of rain. That which falls on the 

 land waters the fields and farms, and fills 

 the streams and lakes. 



One after another will now point to the ocean, the vapor, 

 the clouds, the rain, streams and lakes. 



15. The ocean, then, supplies or fills all the 

 lakes, ponds, rivers, and streams ; every drop of 

 water on the surface or under the surface of the 

 land, on the mountain top or in the deepest 

 valleys ; all the water of the wells and springs ; 

 all the moisture which floats in the air ; and all 

 rain, snow, hail, or dew. 



Is the water of the ocean salt or fresh ? Salt. Is the 

 water of rain, lakes, rivers, and snow salt or fresh ? 

 Fresh. 



If these are all supplied from the salt ocean, why are they 

 fresh ? Because when vapor rises from the ocean, the salt, too 

 heavy to rise, remains behind. 



From what besides the ocean does vapor rise ? From 

 lakes, rivers, ponds, and wet ground. 



Does vapor rise from a cup of water ? // does. 



SPELL AND DEFINE Well, lake, snow, valley. 



