UNIT 5 Materials and cycles on Earth

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Across
  1. 5. the science of collecting and analysing
  2. 9. period a warmer part of an ice age
  3. 11. the layer of gases surrounding the
  4. 13. a regular changing pattern from one thing to
  5. 14. in the atmosphere
  6. 15. data in large quantities
Down
  1. 1. a measure of the concentration of water
  2. 2. the study of climate
  3. 3. the study of weather
  4. 4. a measure of how far you can see due to
  5. 6. (or another planet)
  6. 7. the state of the atmosphere in a particular
  7. 8. in general and over a long period
  8. 10. light and weather conditions
  9. 12. the weather conditions prevailing in an