Monday 12 December 2011

Basic Needs Of Plants

Basic Needs Of Plants
  • Air
  • Water
  • Sunlight
Plants Need Air
Plants need oxigen from the air for respiration. Plants also need carbondioxide from the air to make food. Plants make food throgh
photosynthesis. Plants will die without air.

Plants Need Water
Plants absorb water from the soil through their roots. Plants need water for making food during photosynthesis, transporting food and minerals to the plant tissues.

Plants Need Sunlight
Green plants can make their own food through photosynthesis. Sunlight is necessary for photosynthesis. Without sunlight plants will die. Sunlight provides the energy needed for water to combine with carbon dioxide to produce glucose in the leaves. Oxygen is produced as a by-product.

Pictures show what is basic need of plants
                                      
    
    
 

Sunday 11 December 2011

Water
Water is esential to humans and animals.

Humans and animals need water to :
  • maintain the body temprature
  • transport digested food throughtout the body
  • help in removing waste from the body
  • help in blood circulation
Humans and animals wil die if they do not get sufficient water for a long time. Humans should drink about eight glasses of water daily.
Vegetables, milk and fruits contain water.
      
                                                                    Humans need water
                                              

                                                         Animals need water
                     

                              fruits                                                                                Vegetables
                            
                                                     Vegetables and friuts that contain water
                                                                         
Different types of shelter for animals :
                   
                                                                         Nest

                      


                                                                     Cage
                 

                                                                       Holes
                     
                                                                        Cafe

       


                                                                 Coral reef