Earth As a System Vocab

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Across
  1. 5. center of earth, made of iron and nickel
  2. 8. system where energy but not matter is exchanged with surroundings
  3. 9. enters the soil and water when rock breaks down in this cycle
  4. 13. makes up 78% of atmosphere
  5. 15. thin outermost zone of the earth
  6. 17. earth's actual shape
  7. 18. sequence in which organisms consume others
  8. 19. largest population an environment can support
  9. 20. community of organisms and their abiotic environment
  10. 21. break down dead organisms
Down
  1. 1. layer of earth that flows under pressure
  2. 2. related objects that interact to create a whole
  3. 3. condensation, precipitation, and evaporation make up this cycle
  4. 4. make their own food
  5. 5. get energy from eating other organisms
  6. 6. carbon dioxide and glucose make up this cycle
  7. 7. relationship between food chains
  8. 10. group of processes where matter moves through reservoirs
  9. 11. force of attraction between all objects
  10. 12. part of crust and upper part of mantle
  11. 14. system in which matter and energy are exchanged with surroundings
  12. 16. layer of earth that makes up 2/3 of earth's mass