Study

Water Cycle

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  • True or False: Water vapor is visible to humans.
    False. Water vapor can only be seen when combined with aerosols.
  • The percentage of water vapor that the air contains at a certain temperature is ____.
    Relative humidity
  • Where does our fresh water come from?
    evaporation and condensation
  • When trade winds hit a mountain range, what can happen?
    a rain shadow can form -- perhaps create a desert area
  • What part does gravity play in the water cycle?
    The force of gravity helps drive the motion and cycling of water through the water cycle.
  • What part of the water cycle is shown in this image?
    Evaporation
  • What part of the water cycle is shown in this image?
    Transpiration
  • What part of the water cycle is shown in this image?
    Condensation
  • True or False: Cold air holds more moisture than warm air.
    False. Warm air holds more moisture.
  • Name two things that drive the motion and cycling of water through the water cycle.
    1. The suns energy 2. The force of gravity
  • What part does the sun play in the water cycle?
    The sun provides the energy that drives the water cycle.
  • Name three of the places where water can be collected.
    Teacher Check: lakes, rivers, streams, glaciers, ocean, groundwater
  • Where is most of the water on Earth located?
    The oceans
  • What needs to be added or removed to change water from gas to liquid or vice versa?
    heat (thermal energy)
  • What causes the directions of airflow on Earth?
    Earth's rotation
  • True or False: Warm air rises.
    True.
  • Most of our weather here in Pennsylvania comes from ___.
    Canada -- the westerlies bring air down from Canada into the U.S.
  • What part of the water cycle is shown in this image?
    Collection
  • What is another name for the water cycle?
    Hydrologic Cycle
  • What part of the water cycle is shown in this image?
    Precipitation
  • True or False: Lake Erie is an example of a "salt" lake.
    False. Lake Erie is a freshwater lake.