4th Grade Chap. 8 & 9 Science Test

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bdoering
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225385
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4th Grade Chap. 8 & 9 Science Test
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2013-11-13 15:49:34
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Chapter Science Test
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Study for 4th grade science test chap. 8 & 9
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  1. If you see high or low pressure areas on a weather map you can predict that the weather will be...
    Windy
  2. The troposphere, stratosphere, mesosphere, and thermosphere are layers of...
    The atmosphere
  3. What is the difference between weather and climate?
    Weather is the day to day changes in temperature and conditions and climate is a description of the typical weather for an area over a long period of time.
  4. The moon's orbit around Earth causes daily changes in the...
    Ocean tides
  5. Areas with no public disposal systems have...
    Septic tanks
  6. There is wind on Earth because of something going on on the surface of the Earth.  What is it?
    Earth's surface is unevenly heated.
  7. When a cold air mass meets a warm air mass the cold air mass forces the warm air mass upward, possibly resulting in...
    violent weather
  8. Name the states of matter in which water may exist.
    Solid, liquid, or gas
  9. Large streams of water that flow in the ocean are called...
    Currents
  10. The lowest part of a wave is called a...
    Trough
  11. In the Northern Hemisphere, warm currents move in this direction...
    clockwise direction
  12. Water is found surrounding Earth in this...
    The atmosphere
  13. Fruits and vegetables contain quite a bit of this.
    Water
  14. At low temperatures liquid water can become solid ice by this process.
    Freezing
  15. The oceans never overflow because they lose water through...
    evaporation
  16. When there is rain for several days, this may be the result of a...
    Stationary front
  17. In 1997 and 1998, the eastern United States and California experienced heavy rains and flooding as a result of this...
    El Nino
  18. All fronts consist of...
    A warm air mass and a cold air mass.
  19. Almost all of the world's water is found here...
    The oceans
  20. A boundary between air masses that don't move.
    Stationary front
  21. The measurement of how much water vapor is in the air.
    humidity
  22. What two gases is air mostly made up of?
    Nitrogen and oxygen
  23. What is the climate near a large body of water like?
    Cloudy, rainy, cooler summers and warmer winters.
  24. Clouds that have a whispy, feather-like shape.
    Cirrus Clouds
  25. Sections of air with nearly the same temperature and moisture.
    Air masses
  26. The blanket of air surrounding the Earth.
    The atmosphere
  27. When a cold air mass pushes under a warm air mass.
    A cold front
  28. Puffy clouds that appear to rise from a flat bottom.
    Cumulus clouds
  29. A boundary between air masses where the warm air mass slides up and over the cold air mass.
    Warm front
  30. The force of air pushing on an area.
    Air pressure
  31. Clouds that form in layers.
    Stratus clouds
  32. Wastes from industry, farming, and humans are the main sources of water ______.
    pollution
  33. Ocean tides are caused by the pull of _____ between Earth, the Moon and the Sun.
    gravity
  34. Rain, snow, sleet, and hail are types of...
    precipitation
  35. For a well to produce water, its bottom must be below the ______.
    Water table
  36. The water in rivers, lakes, and streams is _____
    fresh water
  37. The place where fresh water and salt water meet.
    estuary
  38. The atmosphere over a body of water holds more _____ than the atmosphere over a desert.
    water vapor
  39. Fixing leaky faucets and taking short showers are just two methods of ____
    water conservation
  40. The rise and fall of ocean water levels.
    Tide
  41. Water in the atmosphere that falls on Earth.
    Precipitation
  42. More of the Earth's water is found in _________ than in all of Earth's rivers and lakes.
    groundwater
  43. Particles of water go through the process of evaporation as they absorb _______.
    heat enerby
  44. Water stored in the cracks and spaces of underground rock.
    groundwater
  45. Passing a liquid through materials that remove impurities.
    filtration
  46. Tiny drops of condensed water in the atmosphere.
    cloud
  47. Water in a gas state.
    water vapor
  48. A thick sheet of ice covering a large area of land.
    ice cap
  49. The upper area of groundwater.
    water table
  50. An up and down movement of water.
    wave
  51. A way to get water into the soil by artificial means.
    irrigation

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