earth's processes PowerPoint presentation
- 2. Geo = earth graphy = to scribe, draw, or map GEOGRAPHY
- 3. • the science of location • the study of spatial relationships, (context &interconnectedness) • an integrated science that uses knowledge from many disciplines
- 4. Physical Geography • Geography: The study of where things are. • Physical: Environmental or natural phenomenon • Physical Geography: the study of the location of, context and interaction of environmental phenomenon
- 5. PHYSICAL GEOGRAPHY OF THE WORLD • Climates • Plants • Animals • Landforms
- 13. The Earth System • System- a set of components that are interrelated. • Earth’s Major Subsystems - • atmosphere • lithosphere • hydrosphere • biosphere
- 19. The Earth System The Earth System • Earth’s Major Subsystems - • atmosphere • blanket of air that surrounds the earth • lithosphere • sphere of the solid crust including rocks, landforms • hydrosphere • system of water including rivers, subsoil water and atmospheric water • biosphere • sphere of life including plants and animals
- 20. Closed/Open Systems Closed/Open Systems • Closed System- no material or energy enters or leaves the system (ie. Solar System) • Open System - material or energy enters and leaves the system ( river system)
- 21. Key Terms Key Terms • Ecosystem - community of organisms functioning together in an interdependent relationship with the environment • Dynamic Equilibrium -changing relationships among the variables of a system which produces a balance between the amounts of materials that enter or leave a system
- 22. Earth/Sun Relationships Earth/Sun Relationships • Revolution & Rotation • Aphelion & Perihelion • Angle of Inclination • Plane of the Ecliptic & Equator • Circle of Illumination • Winter & Summer Solstices • Spring & Fall Equinoxes
- 24. 91,000,000 miles 94,000,000 miles Earth’s Elliptical Orbit Around The Sun January 3 July 3
- 25. EARTH’S ROTATION
- 37. EARTH, EARTH, How hot is it? How hot is it? What determines temperature? What determines temperature? Insolation ( Insolation (in incoming coming so solar radi lar radiation ation) ) Cloud cover Cloud cover Altitude Altitude Water vapor in the air Water vapor in the air Land or water Land or water Air movement (wind) Air movement (wind)
- 38. Insolation Insolation Only at one latitude Only at one latitude at a time are the at a time are the sun’s rays overhead sun’s rays overhead Between Tropic Between Tropic of Cancer and of Cancer and Tropic of Tropic of Capricorn Capricorn Everywhere else, Everywhere else, rays are diffused rays are diffused
- 39. What causes the seasons? What causes the seasons? Volunteers? Volunteers? The tilt of the earth The tilt of the earth The angle of sunlight The angle of sunlight The change in heat received from the sun The change in heat received from the sun