Friday, 14 December 2012


  • Waste are things that we  no longer use and would throw away.
  • Waste may include materials such as old magazines, old newspapers, boxes, glasses and plastic bottles, metal containers and food residues.
  • Food and plants are throw away are known as organic waste.
  • We can find these waste from markets and food stalls.
  • Chemical waste can come from agriculture, factories and our home.
  • Smoke from the burning of fuel in factories and vehicles are waste that are let out into atmosphere.
  • The amount of waste produced by human activities is increasing. 
  • In some places, the local authorities will provide proper facilities to dispose of the waste.
  • We should play our parts to make sure we use the proper ways of disposing of waste.
  • Use the bins provided by the local authority to throw our waste.
  • It is a good habit to sort our waste into different types before throwing them away.
  • Chemical waste can be put into special containers and disposed of appropriately.

Thursday, 13 December 2012

Plant Competition

Plant Competition
  • Like animal, plants living in the same habitat have to complete for the same factors in order to survive.
  • Plants need water, carbon dioxide, sunlight and nutrient to make food.
  • Plants get water and nutrient from the soil.
  • If there are too many plants growing in the same area, the place will be overcrowded.
  • They complete for sunlight, water, nutrient and space.
  • Competition can occur among plants of the same species or of different species.
  • When competition occurs, the plants that receive enough water, nutrient and sunlight grow better and healthier. 
  • Weaker plants may become stunted, wilted or die.