Changes in an Ecosystem

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Across
  1. 6. Any water that moves through the air to the ground
  2. 7. A species with a very small population – it may soon become extinct
  3. 11. Liquid changing into vapor
  4. 13. Water vapor changing to liquid
  5. 14. Breaking down of bodies of dead things
  6. 15. Any physical hazard to life caused by having too much or too little of things needed for life
  7. 16. A species that may become endangered in the near future
  8. 17. pattern of change
Down
  1. 1. Organisms use sugar molecules and oxygen to create energy
  2. 2. Plants and animals giving off water vapor
  3. 3. Species that are not native to the area and can cause harm to that ecosystem
  4. 4. A species whose last known member has died
  5. 5. Gradual changes in the populations of organisms in the ecosystem
  6. 8. Plant and animal species that originally live in an ecosystem
  7. 9. Precipitation that soaks into the ground
  8. 10. One of the earth’s cycles – regular divisions of the year
  9. 12. Plants using water, carbon dioxide from the air, and energy from the sun to form sugar molecules and oxygen