RAIN 19 



and drops most of the soil and trash which it is carrying. 

 Hut it is still muddy from the fine particles which do 

 not settle. These it takes to the nearest creek, which 

 in turn takes then OH t<> BOOM river, which takes them 

 to a sea or lake, ami here they finally settle to a resting 

 place iu its bed The particles of soil and trash carried 

 l)v tin- water are called m:i»i.\ii.\t, and when this settles 

 out from water it i> said to be deposited. Thus muddy 

 id t<» deposit sediment. 



Just try to think of the vast number of little streams 

 of water at work each day earning off soil from exposed 

 dee, Much of this soil is deposited in the bottom 

 lands <»f < n.k> and rivers, which are thus often made 

 rich at the expense of the hills. But most of the anal] 

 les of soil which easily float find their way through 

 reekl and rivers to a sea or lake, and here they are 

 deposited as bars of mud and sand. As the river is con- 

 stantly bringing down more mud and sand, these bars 

 grow and finally rise* from the water to form new land. 



16. Leaching. — Rain water amies with it from the 

 land other things 1 ud and sand. Nearly 



one knows that sea water is full of salt, but few stop to 

 think where this. salt OOmSS from. It comes from the 



soil. 'Salt cannot be seen or tasted in ordinary soil, but 



it is there, along with many other substances that arc 

 also called salts, because they are like common salt. 



es salts there arc many other substances in 

 some of which dissolve in water and some do not ( <>m 

 m«»n §ah dissolves very easily in water, as do most of 

 the other salts. When a rain falls, part of the water 

 runs off on the surface of the soil, carrying with it mud 



