Science subject


 This unit is about SOIL. 
Definition of Soil:Is the mixture between minerals , air , water and organic matter.
                                                                     Soil Profile
It is a vertical section of the soil from the ground surface downwards.It is formed by different ``Layers´´ called horizons.
                                                                    Types of Soil

 
                                                         Soil components:

                                                














                                                      The Growth of a plant depends on:
The amount of sunlight
Availability of Water,Air,Nutrients.