ECL-wk01a - Todays Outline General Intro Stuff Components...

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1 1 Today’s Outline General Intro Stuff Components of the Earth System Scientific Method Open and Closed Systems Examples of Interactions within Cycles – energy, hydrologic, nitrogen, rock cycles 2 The Earth System and Its Interconnected Parts • Geosphere – solid earth • Atmosphere – nitrogen, oxygen, argon, CO 2 , water vapor • Hydropshere – oceans, lakes, streams, groundwater, snow/ice • Biosphere – organisms, organic matter 3 The Scientific Method 4 The Scientific Method Make observations Generate questions Formulate testable hypotheses Design experiments to test hypotheses Formation of a theory – What is a “theory”? Formation of a law Continual re-examination
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2 5 The System Concept Isolated System (imaginary) Closed System (exchange of energy but not matter) Open System (can exchange energy & matter) 6 An Open System • Evaporation • Precipitation • Transpiration Solar radiation Box Models: Reservoir
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