EcoQuest

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Across
  1. 2. The scientific study of interactions between organisms and their environment.
  2. 4. Fuels, Energy-rich fuels formed from ancient plants and animals.
  3. 8. Everything that surrounds and affects a living organism.
  4. 9. Science, The branch of science that studies environmental systems and problems.
  5. 11. Tide, The common name for a harmful algal bloom.
  6. 13. Water that falls from the atmosphere as rain, snow, or hail.
  7. 15. The excessive growth of algae caused by excess nutrients.
  8. 16. Law, A statement that describes a consistent natural phenomenon.
  9. 18. A controlled procedure used to test a prediction.
  10. 19. Commoner, The founder of modern ecology who proposed the Four Laws of Ecology.
  11. 20. The primary source of energy that drives Earth’s ecosystems.
  12. 23. The release of water vapor from plant leaves.
  13. 24. Cycle, The natural recycling of essential elements through living and nonliving components.
  14. 27. Fixation, The process of converting atmospheric nitrogen into ammonia.
  15. 28. A nitrogen compound produced during nitrification.
  16. 29. The process by which plants make food using sunlight.
Down
  1. 1. All of Earth’s water, including oceans, rivers, lakes, glaciers, and groundwater.
  2. 3. Water stored beneath Earth’s surface in soil and rock.
  3. 5. A possible explanation that can be tested through investigation.
  4. 6. Method, A systematic process used to investigate questions and gain knowledge.
  5. 7. Diversity, The variety of genes within a species that helps organisms adapt and survive.
  6. 10. The use of the senses or scientific tools to gather information.
  7. 11. The process by which organisms release energy from food.
  8. 12. The process where water vapor changes into liquid droplets.
  9. 14. The sharing of scientific ideas and research findings with others.
  10. 17. The protective layer of gases surrounding the Earth.
  11. 21. The part of the Earth where all living organisms exist.
  12. 22. A widely accepted explanation supported by repeated evidence.
  13. 25. The rigid outer layer of the Earth made up of the crust and upper mantle.
  14. 26. The process where liquid water changes into water vapor.