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2013-05-30 20:29:36

Science Final
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  1. A meteorologist wants to study the rel between jet stream position and snowfall in an area. The amount of snowfall received during a given period is the _____ in the experiment.
    Dependent Variable
  2. An oceanographer is collecting data over a 2 week period to determine how wave height is affected by wind speed. What data would be least important to record during measuring periods in this experiment?
    Complete list of all marie life seen in the area
  3. Which of the following is NOT an example of science at work?
  4. Earth scientists help us better understand the world around us by studying how
    Natural forces shape our environment
  5. Once an idea has been tested repeatedly and gains general acceptance, the idea
    may be the basis for scientific theory
  6. A scientific theory is an explanation that
    has been tested by many oberservations
  7. Why does Florida have its wonderful climate?
    Its latitude, Its position between two large bodies of water, and air & water currents
  8. The heat transfer mechanism operating when a heated fluid rises because it is less than the surrounding fluids is called _______.
  9. Ocean water temperature depends on the solar energy an area receives and the water's
  10. How does Magma turn into Igneous rock
  11. Where do deep-ocean trenches form?
    At convergent boundries
  12. What is a transform boundary?
    the fault slides past eachother
  13. According to Wegener, what happened about 250 million years ago?
    The super continent began breaking into smaller continents
  14. An example of a transform boundary is the
    San andreas fault in California
  15. To locate the epicenter of earthquakes, scientists use computers to
    Perform triangulation's based on data from 3 seismograph stations
  16. The early oceans became salty when
    Dissolved solids were carried from land to the ocean
  17. What is one way tectonic plate movement affects climate?
    It creates mountains that affect wind patterns
  18. The curving path of the ocean currents and wind belts is called
    The Coriolis Effect
  19. We can see what spectrum of the electromagnetic field?
    Visible light
  20. The nebular model explains
    Why the inner and outer planets differ, why the planets are widely separated, the presence of comets and asteroids
  21. Energy produced in the sun's core is the result of
    Nuclear fusion
  22. Black holes are theorized to form from?
    Very massive stars that expire, resulting in the core collapsing in on itself. This is due to gravitational forces that act without nuclear fusion counteracting them
  23. A star in the main sequence stage of its existence, like our Sun, is undergoing significant nuclear fusion, where hydrogen nuclei fuse to form helium nuclei, releasing energy. Besides providing the cast amounts of electromagnetic energy released to the rest of the universe, what contributions to star' and life does this nuclear fusion make?
    The nuclear fusion reactions force star mass outwards from the center, offsetting the gravitational attractive forces that would otherwise collapse the core into a extremely small volume.
  24. Kepler correctly proposed that the planets orbited the sun in ______ orbits.
  25. Why computer simulations are useful in studying phenomena in the universe such as this?
    Its often very difficult to study these phenomena directly.
  26. What explains why scientists are able to study fusion in the sun?
    The same fundamental laws that govern Earth also govern other areas of the universe
  27. When the air temperature decreases, the rate of evaperation
  28. Some thunderstorms are caused by convection resulting from the collision of two air masses. Which describes the collision involved in this type of thunderstorm?
    A cold front moves into an area with warm air
  29. What happens when continental plates pull apart
    New ocean crust will be formed at the boundary
  30. Scientists determine the composition and temperature of stars
    by analyzing the spectra of the light that stars emit
  31. Objects in the sky appear to move across the sky at the rate 15 degrees per hour. What is the explanation for this physical feature of our universe?
    Earth rotates at the rate of 15 degrees per hour, and the celestial bodies appear to move at the same rate, because of Earth's rotation.
  32. The average temperature for the month of June is 20.1 degrees Celsius in Minneapolis, Minnesota. In December the average temperature in Minneapolis is -7.8 C. Why is it colder in Minneapolis during December?
    The Northern Hemisphere is tilted away from the Sun in December
  33. Scientists share the results of their experiments with other scientist and expect them to try to find flaws in their data and experimental design. What is the purpose of doing this?
    It helps scientists to improve their experiments and interpret their data accurately
  34. What is the driving force for surface ocean currents?
    Global winds
  35. If you were facing the Earth during a total lunar eclipse. What would you see as you look toward earth?
    You couldn't see the sun because Earth blocks its light
  36. Weather forecasting requires compiling ad analyzing data about a variety of atmospheric conditions. Which of these is the most important type of data in computer modeling which produces a forecast?
    recent changes in barometric pressure
  37. apogee?
  38. perigee?
    closer (pretty damn close)
  39. George know that when the Sun, the Moon, and Earth form a right angle, the tides are the weakest. These tides are also called
  40. The increase in global temperature is not expected to be uniform across the planet. The Northern Hemisphere is expected to experience greater average increases in temperature than the Southern Hemisphere. What is a possible cause of this?
    The Northern Hemisphere has more landmasses than the Southern Hemisphere.
  41. When exposed to the elements, bedrock gradually changes over a long period of time. In the drawing below, the cracks in the rock and force arrows can best be explained as
    physical weathering
  42. Of the three broad actions that society can take with respect to the effects of science and technology on the environment, the most logical appears to be to...
    prioritize the consequences to the environment in applying technologies
  43. What happens to the average kinetic energy of the particles in a sample of matter as the temperature of the sample is increased?
    The average kinetic energy increases
  44. Which statement is true about the charges assigned to an electron and a proton?
    An electron is negative and a proton is positive.
  45. Which of the following is common to the carbon cycle, the nitrogen cycle, and the water cycle?
    The substance is required by all living things and is involved in many processes that occur in all living things.
  46. The warming of the surface and lower atmosphere of Earth that occurs when carbon dioxide, water vapor, and all other gasses in the air absorb and re-radiate infrared radiation is known as
    Greenhouse effect
  47. The two most important factors in determining a regions climate are
    Average temperature and average precipitation
  48. By analyzing the light that a star emits, astronomers can determine
    the composition and temperature of a star
  49. What is important about Hubble's discovery that there is a red shift in the spectra of galaxies?
    It suggests that the universe is expanding