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    GEO12 – 2.1

    January 26

    Troubleshoot/discuss Assignments 4,5,6


    • Closed “Cascading” System (Fig.10.2 – p.197)
      • matter (water) changes state due to inputs/outputs of energy (the sun)
      • actual water is neither added nor taken from the system
    • Hydrologic Cycle “Storehouses” and “Storage Time”
      • the places in the hydrologic cycle that water spends time in
      • the average time water spends in each of the places
      • Q: Where (in which storehouse) does water spend the least amount of “storage time”?
      • Q: Where (in which storehouse) does water spend the most amount of “storage time”?
    • Storehouse:  The Oceans & Salinity
      • Abyssal Plain
      • Salinity
        • Q:What factors might affect the salinity of a particular sea?
      • Thermocline
        • “barrier” creates two distinct zones of temperature + salinity
      •  Ocean Currents
        • Video “How Do Ocean Currents Work?”
    • Freshwater Storehouses
      • Glaciers & Ice Sheets
        • Earth has 2 Major Ice Sheets
          • Q: Name the two major ice sheets and their location
        • Warming Seas & Melting Ice Sheets – NASA Global Climate Change (see MOODLE)
      • Groundwater
        • water table:  level beneath surface of the earth where the ground is saturated with water
          • levels vary depending on climate, physical characteristics of the land
            • artesian wells vs non-artesian wells/springs
        • aquifers
        • permeable vs. impermeable rock
          • Q: explain how permeable and impermeable rock play a part in groundwater reserves
      • Rivers & Lakes
        • represent less than 1% of Earth’s fresh water
        • the St. Lawrence & the Mackenzie represent two of Canada’s greatest rivers that discharge into the oceans
        • importance of the Great Lakes
        • Q: What river on Earth is the greatest discharger of water into the oceans?
        • Q: Which lake on Earth holds the greatest amount of water?
        • Q: What is the Earth’s deepest lake?
        • Q: What is the largest lake on Earth in terms of surface area?
      • Atmosphere
        • Evaporation
          • rate is affected by variables that include wind, surface characteristics, air turbulence, and air temperature
        • Absolute Humidity (volume) vs Relative Humidity (ratio)
        • Dew Point (Condensation Point)
          • the temperature at which air is saturated (cannot hold any more water)
        • Condensation
          • dew, fog
          • Q: Explain the process of glasses fogging up immediately when a person goes inside from the cold.
          • hygroscopic particles attract water vapour
        • Precipitation
          • rain, snow, sleet, hail


    Ecological Footprint – complete as homework for tomorrow’s class

    “The Trip Not Take” – Nat GEO:  Portland and the idea of a liveable city

    *Note upcoming due dates:

    • January 29 –  Digital Portfolio entries on 2020 pandemic changes (Understanding the World through a New Lens)
    • January 18 (week of) – Digital Portfolio – Blue Gold KWL
    • January 25 (week of) – Assignment 5 Parts 1 & 2
    • January 25 (week of) – ASSIGNMENT 4
    • January 25 (week of) –  Assignment 6 
    • ONLINE Marks close February 1
    • February 1,2,3 – Self Assessment
      • Feb 1 or 2 – FLEX
      • Feb 3 – Last Date ONLINE SUBMISSION

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