Ch 12 Fresh Water Sec 12 1

1
Ch 12 Fresh Water Sec 12 -1

• Water Cycle movement of water from the earth,
  to the atmosphere, and then back to the earth.
  There are 4 main steps
• Evaporation liquid changes to gas
• Condensation gas changes to liquid
• Precipitation rain, snow, sleet, hail
• Runoff or Ground Water - forms lakes, ponds,
  rivers and well water.
• Distributions of Earths water
• 97 - Ocean water
• 3 - Fresh water (most is ice)
• Less then ½ of a percent of total water is usable
  for us.