Earth & Space Chapter 1

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Across
  1. 2. upward movement of water through a tiny space in response to surface tension
  2. 6. how tightly packed matter is
  3. 8. any collected water below the soil's surface
  4. 9. a sensible explanation for a scientific observation
  5. 13. bacteria that converts nitrogen in the soil into ammonia and nitrates
  6. 15. reaching the same conclusion by performing different experiments that test the same hypothesis
  7. 17. nourishing substances
  8. 18. material primarily derived from living organisms
Down
  1. 1. the study of reasoning
  2. 3. a conclusion based on reasoning from evidence
  3. 4. the substance of the physical world
  4. 5. logic error
  5. 7. the study of soil
  6. 10. bacteria that convert nitrates in the soil into atmospheric nitrogen
  7. 11. facts about nature
  8. 12. nonporous
  9. 14. cycle in which nitrogen is moved from the air to the soil to be used by plants, and then returned to the atmosphere
  10. 16. amount of matter in an object