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3 D Billy Yang, Water Pollution


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3 D Billy Yang, Water Pollution

  1. 1. Water Pollution By Billy Yang (39) Class 3D
  2. 2. What is polluted water? <ul><li>Polluted water is water that is dirtied with harmful things. </li></ul><ul><li>For example: </li></ul><ul><ul><li>Rubbish </li></ul></ul><ul><ul><li>Oil Spills </li></ul></ul><ul><ul><li>Dirt (like at construction sites) </li></ul></ul>
  3. 3. Why is water polluted? <ul><li>Some more sources of water pollution are: </li></ul><ul><li>Factories dump their waste in the water. </li></ul><ul><li>In poor countries some people use the river as the toilet. </li></ul>
  4. 4. Why is water polluted? <ul><li>Also, many causes of water pollution, like our sewage, contain nutrients inside. </li></ul><ul><li>When there are too many nutrients, algae grows and uses the oxygen in the water. </li></ul><ul><li>Since there is no oxygen left, the fish will die. After they die, they rot and make the water dirty. </li></ul><ul><li>The water is polluted even more!  </li></ul>
  5. 5. Why is water polluted? <ul><li>We humans caused a lot of it. </li></ul><ul><li>For example, we throw rubbish into the water, and we create oil spills. </li></ul><ul><li>Some people are lazy to dispose of their rubbish properly so they throw it anywhere they want, including in the water. </li></ul>
  6. 6. Why is water polluted? <ul><li>They do not think of how important the water is. </li></ul><ul><li>They do not think of the life in the water. </li></ul><ul><li>Sometimes they have not been properly educated about how important the water is so they pollute it. </li></ul>
  7. 7. Harmful effects <ul><li>After the water is polluted, we cannot use it any more unless we clean it again. </li></ul><ul><li>Methods to clean water are expensive. </li></ul><ul><li>It also harms the wildlife in the water. </li></ul><ul><li>For example, turtles might think that plastic bags are food and get stuck in them. </li></ul><ul><li>They will die because they cannot breathe or eat. </li></ul>
  8. 8. How can we help? <ul><li>1. Correctly dispose of harmful household products. </li></ul><ul><li>Keep harmful substances like paint out of your drains, sinks, and toilets. </li></ul><ul><li>This is so that the harmful substance will not end up in a water source like the sea. </li></ul>
  9. 9. How can we help? <ul><li>2. Do not throw rubbish into the water </li></ul><ul><li>Remember, this will pollute the water. </li></ul><ul><li>Always keep in mind that you must keep the water clean! </li></ul>
  10. 10. How can we help? <ul><li>3. Tell your friends too! </li></ul><ul><li>If more people know that polluting water can affect us in bad ways, then they will stop it. </li></ul><ul><li>Tell them to tell their friends to spread it too. And then their friends will tell their friends… </li></ul><ul><li>This way, more people will stop polluting water!  </li></ul>
  11. 11. An Animation Plastic Bag One day, Tom went to a lakeside.
  12. 12. Do not do this! He threw the plastic bag into the water.
  13. 13. See what happens… The fish got stuck in it when they tried to eat it.
  14. 14. See what happens… After a while, they died.
  15. 15. See what happens… The food chain broke down and the other animals died. X X X
  16. 16. Oh dear… <ul><li>Now you see what harmful effects water pollution can have! </li></ul>
  17. 17. <ul><li>Any questions? </li></ul>The End! Thank you!