Vocabulary Words

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Across
  1. 4. profile, A vertical cross-section of dirt layers.
  2. 5. Rain, snow, sleet, or hail.
  3. 8. cycle, Process of fixing, nitrifying, and denitrifying a common gas.
  4. 10. Interacting populations in a shared area.
  5. 11. Organism that gets energy by eating others.
  6. 14. cycle, The continuous movement of water on, above, and below Earth.
  7. 15. method, Systematic approach to testing a hypothesis.
Down
  1. 1. Liquid-to-gas phase change for water.
  2. 2. equilibrium, State of balance where births and deaths match.
  3. 3. Autotrophs at the base of the food chain.
  4. 6. feeders and Decomposer, Nature's recycler.
  5. 7. Meeting present needs without compromising the future.
  6. 9. Worldwide integration of economies and cultures.
  7. 12. resource, Solar or wind energy, definitionally.
  8. 13. key, Biologist's tool for identifying unknown organisms.