Earth's Spheres and Systems

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Across
  1. 4. all of the water in our planet
  2. 5. the lowest level in the atmosphere
  3. 7. greek word that means "life"
  4. 8. greek word that means "ground"
  5. 9. a body of flowing water moving towards the sea
Down
  1. 1. all of the living organisms on earth
  2. 2. a large body of water surrounded by land
  3. 3. greek word that means "air"
  4. 6. greek word that means "water"
  5. 7. a region with similar plants, animals, terrain, and climate