Unit E Crossword: Nicole 8S

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Across
  1. 4. living things
  2. 7. water that is safe for humans to drink
  3. 8. area of land that drains into one main main lake or river
  4. 9. water containing a high concentration of calcium and magnesium
  5. 12. eroded rock fragments and soil carried by water or wind
  6. 14. highest point of land on a continent; rivers flow into different oceans depending on which side of the divide they start
  7. 15. technique for separating solutions that involves boiling and condensation
  8. 16. a biological community of interacting organisms and their physical environment
  9. 18. observe, check, or keep track of something for a specific purpose
  10. 19. amount of dissolved salts in water
Down
  1. 1. large moving body of ice that can be many meters or even kilometers thick
  2. 2. average weather measured over a long period of time
  3. 3. measure of the amount of substances besides water in a water sample; description of how pure a water sample is
  4. 5. characteristics used to describe a stream or river; these include volume and rate of flow, slope and shape of bed
  5. 6. movement of water through a membrane from an area of lower water concentration to one of higher water concentration; technique used for purifying water
  6. 10. physical characteristics or behaviour of a species’ chances of survival in a particular environment
  7. 11. group of organisms of the same species that live in a particular area
  8. 13. stream of water that moves within a larger body of water
  9. 15. description of the variety of different species in an ecosystem; may also be used to describe variety in a population or species
  10. 17. daily change in water level of the oceans