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Sec 2 - Gobal Warming
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- 2. Changes in theEarth’s Climate
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- 4. What did youjust witness? Birds migrating Lighting / storm Flooding Hurricane Snowing etc
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- 6. What is GlobalWarming? The increase in air temperature throughout the world.
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- 8. What can youinfer from both pictures?
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- 10. Do you believethere is global warming?
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- 13. What causes thetemperature to increase? Greenhouse effect The gases in the atmosphere trap some of the heat from the Sun thus keeping the Earth warm. Without these gases, the heat would be lost and living things might not survive because it gets too cold.
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- 15. Enhanced greenhouse effectAn accelerated greenhouse effect is caused by a rapid increase in the amount of greenhouse gases in the atmosphere, trapping more heat from the Sun.
- 16. What causes moregreenhouse gases to enter the atmosphere? You might want to write it down at least three causes in your note book Then we check our answer later You have 1 min to do so.
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- 19. Types of greenhousegases Carbon dioxide
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- 21. Types of greenhousegases Nitrous oxide
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- 23. Types of greenhousegases CFCs Chlorofluorocarbons
- 24. Types of greenhousegases Methane
- 25. Methane from ricefield
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- 30. Consequences of globalwarming
- 31. Consequences Changes inweather condition Impact on plants Impact on animals Impact on people Rising sea level
- 32. Changes in weathercondition Drought Too dry Water evaporate faster
- 33. Changes in weathercondition Floods Too much water vapour in the atmosphere Too much rainfall
- 34. Impact on plantsChanges in rainfall and temperature could affect the growth of important crops. Rice Wheat Corn Leading to food shortage & famine
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- 36. Impact on animalsMigration of animals due to temperature changes Yaks and llamas have to move to mountainous or cooler area or else face extinction.
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- 38. Impact on peopleIncrease in temperature leading to spread of diseases such as Dengue fever Malaria Yellow fever Increasing temperatures may lead to dehydration and heat stroke
- 39. Rising sea levelMelting of the ice cap Decrease in land area Arable farmland may be destroyed People have to move from coastal area to higher ground.
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- 41. Can you seethe ice cap melting Where does the water goes?
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- 43. Any solutions? Whatcan Hillgrove do to battle against global warming?
- 44. What can Hillgrovedo to battle against global warming? Dateline 10 July 09 Best 3 answers will win a prize Put your answer in the box (Mr. Caleb Chua Pigeon hold) Please write behind Your name Your class
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- 51. Homework Sec 2Exp Workbook pg 105 to 106 Sec 2 NA Work pg 117 to 118
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