CHAPTER II 



THE FOOD OBTAINED BY THE PLANT FROM THE SOIL 



WE must next try and find out whether the roots 

 obtain any other food for the plant besides water j 

 whether the stream of water passing through the 

 plant carries anything else with it which the plant 

 requires. 



We have noticed in a former experiment that 

 when the water was coloured red, the water took the 

 red colouring with it into the plant. Let us try 

 and understand how this came about. 



Some Substances are soluble in Water 



Experiment 8 



Take five small flasks, and place in one some 

 sugar, in the next some salt, in the next some blue 

 crystals of sulphate of copper, 1 in the next some sand, 



1 Sulphate of copper is poisonous. 



