7 Sea-floor vents have become homes for ocean life
8 Earth System Science All of these separate areas interact Earth cannot be looked at as different partsHow do they interact?We need to create a model of the Earth’s SystemsWe need:TechnologySatellitesComputersSubmarines
9 Systems vs. ModelsSystem: A piece of the Universe that can be studied separately from everywhere else.Models are the way we describe a system. Models can be used to predict the past and future of systems.
10 Open vs. Closed SystemsThere are two types of systems:ClosedOpen
11 Closed Systems Energy may enter, but mass must remain constant Examples:Closed JarsSubmarines
12 Open Systems Open systems may exchange both energy and matter Examples:Boiling waterIslands
13 Systems Open Closed Refrigerator City Classroom Light bulb Oceans Earth
14 Earth is a (essentially) a closed system Energy enters as light from the sun and starsEnergy leaves as heat and lightMatter enters as meteorsMatter leaves as Hydrogen atoms, satellites, rockets
15 Earth System Science is studied: As individual and isolated partsAs a complex system involving many interactions
16 A system is…A piece of the Universe that can be studied separately from everywhere else.The way we describe a complex interaction.
17 A model is…A piece of the Universe that can be studied separately from everywhere else.The way we describe a complex interaction.
18 A closed system means that… Energy may enter and leave, but mass must remain constantBoth energy and mass can enter and leave
19 An open system means that… Energy may enter and leave, but mass must remain constantBoth energy and mass can enter and leave
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