Quick Notes

Quick Notes

Science Chapter 5: Plants
5.1 Growth of plants
 
  • Plants are an important life force for the earth and they also grow in stages.
 

5.1

Growth of plants
 

The importance of plants 
 
  • Plants are living organisms like trees, shrubs and mosses. 
 
  • Plants play an important role in humans and animals' life. 
 
  • Plants are important to humans and animals because:- 
 

1.

  

Source of food for humans and animals
   

- Plants produces fruits and leaves that become the source of food for humans and animals. 
     

2.

  

As habitats for animals
   

- Forest is the natural habitats and shelter for wild animals. 
     

3.

  

Source of air 
   

- Plants absorb carbon dioxide from the environment and release oxygen into the air. 
     

4.

  

Source of medication 
   

- Humans and animals use plants like herbs as medications. 
 
  • Other functions of plants are the source of raw materials for multiples products.
 

For examples:- 
  • Rubber to make tire 
  • Cotton to make the thread
  • Woods to make furniture & house
 
 

Basic Needs for Seeds to germinate 
 
  • In order for a seed to germinate, the basic needs of the seed needed to be met. 
 
 
 

A plant's growth
 
  • Plants will undergo changes when growing. 
 
  • The growth of the plant can be observed. 
 
  • For examples:-
 

 

Stages of plant's growth 
 
  • Following is the stage of plant's growth:-
 

Growth stages of a tomato plant 

 

Basic needs for a plant's growth 
 
  • In order for a plant to grow, the basic needs of the plant needed to be met. 
 
 
  • Other than the basic needs, plants also need nutrients, spaces and are free from pesticides to grow healthily.