Evan McCulloch's Science Crossword.

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Across
  1. 1. return dead organisms back to the ecosystem.
  2. 6. eats other organisms for energy.
  3. 8. gets energy from eating plants.
  4. 13. the process of changing free______ to usable______.
  5. 14. gets energy from eating animals.
  6. 15. a typical weather pattern.
  7. 17. when liquid water becomes gas.
  8. 18. gets energy from the sun.
Down
  1. 2. shows amount of energy movement in a food web.
  2. 3. gets energy by eating dead organisms.
  3. 4. receives lots of rain.
  4. 5. many overlapping food chains.
  5. 6. leaf roof caused by trees.
  6. 7. when water vapor turn to liquid water.
  7. 9. gets energy from eating plants and animals.
  8. 10. rain, snow, sleet, and hail.
  9. 11. land ecosystems with similar traits.
  10. 12. when water moves from the surface to the atmosphere.
  11. 16. series of events when organisms eat other organisms.
  12. 17. when fresh water meets salt water.