Water and weather review

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Water and weather review
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1. Describe the water Cycle. Draw the cycle.
Explain what happens at each step.

• Evaporation process by which molecules absorb
  enough energy to change from liquid to gas
• Condensation changing from gas to liquid forms
  clouds
• Precipitation rain, snow, sleet, hail (any
  water that falls from the sky)
• Run off- back to land off of mountain tops

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2. Define the following terms

• Watershed land area that supplies water to a
  river system
• Surface Water water found on the surface of the
  ground includes rivers, lakes, streams
• Ground Water water that is absorbed into the
  ground

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2. Define the following terms

• Permeable materials that allow water to pass
  through
• Impermeable materials that do NOT allow water
  to pass through them
• Saturated completely filled with water

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2. Define the following terms

• Aquifer an underground layer of rock/sediment
  that holds water can be drilled into by a well
  for water
• Humidity the amount of water vapor in the air
  compared to how much water vapor the air can hold
  at that temperature
• Meteorologist- scientist that studies weather
  patterns and tries to predict it

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3. Use your textbook to draw the weather symbols

• Cold front- brings brief storms and cooler
  weather
• Stationary front- long periods of precipitation

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3. Use your textbook to draw the weather symbols

• Warm front- precipitation and warm air
• Occluded precipitation
• High pressure- sunny days, little or no rain,
  calm weather
• Low pressure- storm, cloudy

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4. What gases are found in the Atmosphere?
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p. 453
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http//www.srh.noaa.gov/srh/jetstream/append/lesso
nplans.htm
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5 functions of our atmosphere

• 1. stratosphere absorbs ultraviolet radiation
  ozone layer (oxygen has 3 molecules)
• 2. thermosphere- converts energy from the sun
  into heat- makes conditions on Earth suitable for
  living things (liquid water, warm air)
• 3. Mesosphere burns up meteoroids (protection)
• 4. Exosphere allows communication
• 5. Ionosphere reflects radio waves

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5. Describe each of the instruments below.
Explain what they are used for in weather
forecasting. What are the units for each?

• Barometer used to measure air pressure 2 kinds
  (Mercury Aneroid) units are inches, cm or
  millibars
• Thermometer used to measure temperature (the
  average amount of energy an object has) work
  because matter expands when hot contracts when
  cold units are degrees Celsius or Fahrenheit

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5. Describe each of the instruments below.
Explain what they are used for in weather
forecasting. What are the units for each?

• Psychrometer used to measure relative humidity
  compares the temperature of a wet dry
  thermometer given as a percent
• Rain Gauge used to measure the amount of
  precipitation in or cm
• Anemometer measures wind speed in mph or kmph
  wind forms when air moves from high pressure to
  low pressure

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6. Describe the 3 main types of clouds.

• Cumulus clouds puffy clouds that form during
  fair weather - cumulonimbus clouds cumulus
  clouds that have grown into rain clouds
• Stratus clouds low layer clouds that often
  cover much of the sky- cause drizzle or rain
• Cirrus Clouds wispy, feathery, high clouds-
  made from ice crystals

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