Water Use

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Across
  1. 4. We can tell the amount of CO2 in the past by looking at CO2 frozen in
  2. 6. The variable that a scientist changes in an experiment
  3. 8. These can be used to tell us how much a tree grew each year
  4. 10. Movement of ocean waters
  5. 11. We can't drink ocean water because it has this in it
Down
  1. 1. The wind cell located closest to the equator
  2. 2. Most of the water on the planet can be found where
  3. 3. Water in Flint Michigan was contaminated with this
  4. 5. A long period of time without enough precipitation
  5. 7. Ocean currents are disrupted when a ____ occurs
  6. 9. A process that takes carbon out of the atmosphere