Earth Science

• Equator


  Reference Point for latitude is at 0°. Divide the Earth into two hemispheres: Northern and southern
• Significant thus of Latitude

  • Equator 0°
  • Tropic of Cancer 23.5 North
  • Tropic of Capricorn 23.5 South
  • Antarctic Circle 66.5 South
  • Arctic Circle 66.5° North
• Climate condition

  • Tropical Zone
  • Temperate zones
  • Frigid Zones (Cold)
• GPS

  • Global Positioning System
• Atmosphere

  The Great mass of air that envelops Earth's surface and is held in place by the planet's gravitational force
• Layers of the Atmosphere

  • Exosphere: (700-10,000 km)
  • Thermosphere: (80 - 700 km)
  • Mesosphere (50 - 80 km)
  • Stratosphere (12-50 km)
  • Troposphere: (0-12 km)
• Altitude: the distance above sea level
• Global Warming: A potential increase in average global atmospheric temperature resulting from the greenhouse effect
• Troposphere - where weather occurs; air temperature decreases with altitude
• Atmosphere has different layers, including troposphere (lowest layer), stratosphere, mesosphere, thermosphere, exosphere
• Natural resources: The raw materials or substances such as minerals, water and fertile land that occurs in nature
• Renewable resources: a natural resource that is unlimited or that is naturally replenished rather quickly
• Non-Renewable: a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption
• What layers of atmosphere have both increasing altitude and temperature? Exosphere, Thermosphere and Stratosphere
• What layers of atmosphere have increasing altitude but have decreasing temperature? Mesosphere and Troposphere
• Troposphere - the lowest part of the atmosphere where all weather takes place.
• Stratosphere - the second layer above the troposphere which contains ozone gas.
• Mesosphere - the third layer above the stratosphere
• Exosphere - the fifth layer above the thermosphere
• Thermosphere - the fourth layer above the mesosphere that is made up of charged particles (ions).