Heat station activity signs


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Heat station activity signs

  1. 1. Station 1: Conduction DemoEnter at least three data points for the time that you are at the station, all at least 1 min apart Time: Container A Temperature Container B Temperature
  2. 2. Station 2: Greenhouse Effect Animation http://ccl.northwestern.edu/netlogo/models/ClimateChange
  3. 3. Station 3: Analysis Questions Make a concept map of the following terms: Radiation, Convection, Conduction, Absorption, Reflection, Scattering, Albedo, Electromagnetic Spectrum, Infrared rays, Visible Light, UV rays, Greenhouse Effect, Global Warming
  4. 4. Station 4: Coriolis Effect Demo 1. Clear the erasable trace-recording surface so no marks are visible. Do this by lifting up the clear, pink film on the turntable 2. Put the launcher on the turntable with the open end aimed towards the center. 3. Place the steel ball onto the top of the launcher so that it is free to roll out. 4. Without rotating the turntable, allow the ball to roll from the edge of the launcher across the turntable’s surface. 5. Sketch the trace on your data page. 6. Without clearing the table, turn the table counter clockwise and release the ball. 7. Sketch the track on your data page. 8. Place the launcher in the center and aim towards the edge. The launcher is now the North pole and edge is the equator. 9. Turn the table counterclockwise and release the ball. 10. Sketch the track on your data page. Compare it against previous spins. 11. Clear the turntable and put the launcher on the edge aiming towards the middle. 12. Spin clockwise and release the ball. 13. Sketch the track on your data page. 14. Place launcher in the center and aim out. Spin clockwise and release the ball. 15. Sketch the track on your data page.
  5. 5. Coriolis effect is an inertial force described by the 19th-century French engineer- mathematician Gustave-Gaspard Coriolis in 1835. Coriolis showed that, if the ordinary Newtonian laws of motion of bodies are to be used in a rotating frame of reference, an inertial force--acting to the right of the direction of body motion for counterclockwise rotation of the reference frame or to the left for clockwise rotation--must be included in the equations of motion. The effect of the Coriolis force is an apparent deflection of the path of an object that moves within a rotating coordinate system. The object does not actually deviate from its path, but it appears to do so because of the motion of the coordinate system. The Coriolis effect is most apparent in the path of an object moving longitudinally. On the Earth an object that moves along a north-south path, or longitudinal line, will undergo apparent deflection to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. There are two reasons for this phenomenon: first, the Earth rotates eastward; and second, the tangential velocity of a point on the Earth is a function of latitude (the velocity is essentially zero at the poles and it attains a maximum value at the Equator). Thus, if a cannon were fired northward from a point on the Equator, the projectile would land to the east of its due north path. This variation would occur because the projectile was moving eastward faster at the Equator than was its target farther north. Similarly, if the weapon were fired toward the Equator from the North Pole, the projectile would again land to the right of its true path. In this case, the target area would have moved eastward before the shell reached it because of its greater eastward velocity. An exactly similar displacement occurs if the projectile is fired in any direction. The Coriolis deflection is therefore related to the motion of the object, the motion of the Earth, and the latitude. For this reason, the magnitude of the effect is given by 2 sin , in which is the velocity of the object, is the angular velocity of the Earth, and is the latitude. The Coriolis effect has great significance in astrophysics and stellar dynamics, in which it is a controlling factor in the directions of rotation of sunspots. It is also significant in the earth sciences, especially meteorology, physical geology, and oceanography, in that the Earth is a rotating frame of reference, and motions over the surface of the Earth are subject to acceleration from the force indicated. Thus, the Coriolis force figures prominently in studies of the dynamics of the atmosphere, in which it affects prevailing winds and the rotation of storms, and in the hydrosphere, in which it affects the rotation of the oceanic currents.
  6. 6. Station 5: Carbon Cycle Animation http://www.kidsnewsroom.org/climatechange/animations.html
  7. 7. Station 6: Analysis Questions Insolation is a measure of the amount or intensity of solar radiation that an area is receiving. The more direct the sunlight that comes in, the higher the amount of insolation. In the space below, draw a diagram of the Earth and the sun. Include the position and tilt of the Earth at both summer and winter. In the spaces below it, explain how the seasons are created using the concept of insolation.
  8. 8. Station 7: Convection Demo
  9. 9. Station 8: Global Warming Animation http://earthguide.ucsd.edu/earthguide/diagrams/greenhouse/
  10. 10. Station 9: Analysis Questions
  11. 11. Station 10: Angle of Insolation Demo
  12. 12. Station 11: Heat Transfer Animations http://www.wisc-online.com/Objects/ViewObject.aspx?ID=SCE304
  13. 13. Station 12: Analysis Questions
  14. 14. Station 13: Solar Absorption DemoRecord at least three data points from your time at the station, all at least one minute apart Time: Land Temperature Water Temperature
  15. 15. Station 14: Local Winds Animation http://www.classzone.com/books/earth_science/terc/content/visualizations/es1903/e s1903page01.cfm?chapter_no=visualization