342 WATER. 



A. Because the contrast between the 

 night and day is very great. The hot 

 air absorbs moisture very abundantly 

 during the day; and when the cold 

 night condenses the air, it is unable to 

 retain the moisture imbibed, and some 

 of it falls in rain. 



CHAPTER XXV. 

 WATER. 



Q. What is WATER ? 



A. Water is composed of two gases, 

 oxygen and hydrogen. 



(In 9 ffis. of water, 8 are oxygen, and 1 is hydrogen.) 

 Q. Why IS WATER FLUID ? 



A. Because its particles are kept 

 separate by latent heat; but when a 

 certain quantity of this latent heat is 

 driven out, water becomes solid, and is 

 called ice. 



