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2 February 2012

2 February 2012. OBJECTIVE: Recognize the difference between greenhouse effect and global warming. INTRO: Write Q&A in notebook: What is a greenhouse? Why is it made out of transparent material (material you can see through)?. The Greenhouse Effect. The Greenhouse Effect. Greenhouse effect

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2 February 2012

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  1. 2 February 2012 OBJECTIVE:Recognize the difference between greenhouse effect and global warming. • INTRO: • Write Q&A in notebook: • What is a greenhouse? • Why is it made out of transparent material (material you can see through)?

  2. The Greenhouse Effect

  3. The Greenhouse Effect • Greenhouse effect • Greenhouse gases • Atmosphere traps energy reflected from Earth’s surface that keeps the Earth warm • The Earth would be very cold without it • Water vapor • Carbon dioxide • Methane • Ozone Greenhouse Effect Flipchart

  4. The Greenhouse Effect • Conduction • Convection • Transfer of heat between air molecules • Transfer of heat by circulation of air molecules • Warm air rises • Cold air sinks

  5. The Greenhouse Effect • Sensible heat • Latent heat energy • Heat released by conduction and convection • Liquid water absorbs energy, changes into water vapor and the energy is then carried into the atmosphere

  6. The Greenhouse Effect • Global warming • Gradual increase in global temperature due to human pollution • Burning fossil fuels (oil, gas, etc.) • As temperature’s increase, storms can become bigger and more destructive • Can change the Earth’s climate

  7. The Greenhouse Effect • Climate • Average weather conditions in an area over a long period of time

  8. The Greenhouse Effect • Greenhouse Gases generated by humans and increase global warming: • Methane • Released by livestock, coal mining and decaying organic matter • Traps more heat than carbon dioxide • Can occur naturally

  9. The Greenhouse Effect • Nitrous oxide • Chlorofluorocarbons (CFCs) • Has sickly sweet smell • Released from fertilizers, sewage, and auto exhaust • Can occur naturally • Used in aerosol cans, air conditioners and refrigerators • Destroy the ozone layer • Made ONLY by humans Global Warming Chart

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