Earth Systems

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Across
  1. 5. The atmospheric layer lying between the troposphere and the mesosphere
  2. 6. Middle of something
  3. 7. third planet in our solar system
  4. 8. Regular sequence
  5. 11. Something that occupies space
  6. 13. rock from outer space
  7. 14. Water storage place
Down
  1. 1. How green plants use sunlight
  2. 2. Air around the Earth
  3. 3. Earth's liquid and frozen surface waters, groundwater and atmospheric water vapor
  4. 4. Zone of life
  5. 9. heat transfer method
  6. 10. Most of Earth's volume
  7. 12. It gets decorated for Christmas
  8. 15. Small objects that are hard small and dense