Environment/Substances & Mixtures

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Across
  1. 2. The action of conserving something, especially the natural environment
  2. 5. A combination of two or more substances that are not chemically combined
  3. 8. The substance dissolved in a given solution
  4. 9. An organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material
  5. 11. A process of separating two liquids with different boiling points
  6. 12. An animal that is hunted and killed by another for food
  7. 14. The natural environment where an organism lives, including all its physical and biological conditions
Down
  1. 1. A biological community of interacting organisms and their physical environment
  2. 3. The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects
  3. 4. A substance formed from two or more elements chemically united in fixed proportions
  4. 5. A possible method for extracting metals from mixtures
  5. 6. An animal that naturally preys on others
  6. 7. Convert waste into reusable material
  7. 10. A substance that dissolves a solute, forming a solution
  8. 13. A process that separates materials based on the size of their particles