Hydrosphere
Hydrosphere All of the liquid, solid and gaseous water contained on the surface, within the ground and in the atmosphere
So, what does this include? Everything!!! Oceans Lakes Rivers Icecaps Glaciers Soil Rocks Clouds
How does water move through the environment? Precipitation – Water that falls to the surface from the atmosphere Rain, snow, sleet, hail Evaporation – The change of state from a liquid to a gas Condensation – The change of state from a gas to a liquid The Water Cycle
What’s all this other stuff???
Transpiration – The evaporation of water through plants
Evapotranspiration – The sum loss of water through evaporation and transpiration
Sublimation – The change of state from a solid to a gas.
How many oceans are there?
How many oceans are there? Oceans are all interconnected, World Ocean 70% of earth’s surface
Oceans as a Temperature Regulator Oceans absorb most of the solar energy that reaches the surface Gulf Stream Great Britian 54oN latitude Same as Newfoundland, Regina, Saskatchewan Ocean currents redistribute energy Oceans absorb and release energy more slowly than land Moderates atmospheric temperature changes
Biosphere The narrow band around the earth’s surface in which all life exists 12km into the ocean, 9km into atmosphere Most organisms require : Liquid Water Moderate Temperatures Source of Energy Exceptions: Extremeophiles, hydrothermal vents
Extremophiles
Extremophiles
Extremophiles
THE EARTH IS A CLOSED SYSTEM Closed System – Energy comes and goes, matter stays Open System – Energy and matter are exchanged with other systems THE EARTH IS A CLOSED SYSTEM