Greenhouse Effect

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Greenhouse Effect
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Contents

• Atmosphere
• Key Terms
• Gases
• Causes
• Effects

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Atmosphere

• Exosphere
• Thermosphere
• Mesosphere
• Stratosphere
• Troposphere

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Troposphere

• Lowest portion of earths atmosphere
• 75 of the entire atmosphere mass
• - Water Vapor
• - Aerosols
• 0 km 10 km Depth 10 km
• Warmer nearest earth
• Colder the further you go
• Travel Back to the Atmosphere

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Stratosphere

• Second layer of earths atmosphere
• 10 km 50 km Depth 40 km
• Colder nearer the earth surface
• Warmer the further into the atmosphere
• Energy is transferred via heat absorption
• by the ozone layer.
• Heating caused by conduction from
• above and convection from below.
• Travel Back to the Atmosphere

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Mesosphere

• Middle layer of earths atmosphere
• 50 km 90 km Depth 40 km
• Warmer closer to earths surface
• Colder the further you out you go
• This is where meteors burn as they
• collide with gas particles
• Most poorly understood part of the
• atmosphere
• Travel back to the Atmosphere

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Thermosphere

• 4th layer of earths atmosphere
• 80 km 500 km Depth 420 km
• Colder near earths surface
• Warmer as you go further into
• thermosphere
• This layer absorbs radiation which in
• turn electrically charge particles.
• Travel back to the Atmosphere

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Exosphere

• Outer layer of the atmosphere
• 500 km 10,000 km Depth 9,500 km
• Only layer of atmosphere where gases can
• escape
• Main gases found here
• - Hydrogen
• - Helium
• - Carbon Dioxide
• Travel Back to the Atmosphere

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Mesosphere
Troposphere
Stratosphere
Thermosphere
Exosphere
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Key Terms

• Condensation - process by which gas or vapor
  changes into a liquid or solid
• Evaporation - the process by which a liquid
  changes into a gas
• Convection - upward movement of heat or other
  atmospheric properties within the atmosphere
• Photosynthesis the synthesis of complex organic
  materials from carbon dioxide, water, and
  inorganic salts using light as an energy source
• Radiation energy that is transmitted in the
  form of rays
• Conduction spontaneous transfer of energy
  through matter, from a region of higher
  temperature to a region of lower temperature

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Gases

• CO2 - Carbon Dioxide
• MH4 - Methane
• O2 Oxygen Gas
• O3 - Ozone
• N2 Nitrogen Gas
• Ar Argon Gas
• H2 Hydrogen Gas
• He - Helium

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Increase in CO2

• Increased by the burning of fossil fuels- coal,
  oil, and gas
• Too much is harmful to our planet
• Creates a cycle of
• Carbon Dioxide
• within our atmosphere
• Contributes to the
• hole in the ozone
• layer

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Carbon Dioxide Cycle
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3-D Image of the Ozone Hole
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Ozone Layer

• Three oxygen atoms bonded together
• Forms a layer above earth that protects us from
  harmful UVA UVB rays
• The ozone hole is a depletion of the ozone in the
  atmosphere.

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What is causing thinning Ozone Hole?

• Cars
• Factories
• Pollution
• Deforestation

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Pollutants
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Effects

• Climate change
• Harms animals habitats
• Decrease crop production
• Flooding
• Drought
• Hurricanes

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QUIZ

• 1. What is the first atmospheric layer closest
  to earth?
• 2. What is the largest atmospheric layer?
• 3. Define a key term (condensation, evaporation,
  photosynthesis, radiation, conduction,
  convection)
• 4. What gas is CO2?
• 5. What is one cause of an increase in CO2?
• 6. Does CO2 exist in oceans?
• 7. Which two layers of earths atmosphere does
  the ozone layer exist?
• 8. What are two things that are causing the
  thinning of the ozone?
• 9. What is an effect of Global Warming?