Science Unit E Crossword by Aisha Nyamukondiwa

12345678910111213141516171819202122232425
Across
  1. 2. to observe, check, or keep track of something for a specific purpose
  2. 7. area of land that drains into one main lake or river
  3. 10. a shelf of land that extends out from the edge of a continent below the ocean’s surface
  4. 13. the deepest part of the ocean; much of this water receives no light and contains little oxygen
  5. 14. water containing a large amount of salt.
  6. 17. highest point of land on a continent, river flows into different oceans depending on which side of the divide they start
  7. 18. measure of the amount of substances besides water in a water sample
  8. 19. the shoreline area where animals and plants live that withstand the pounding of the waves
  9. 20. daily change in water level of the oceans
  10. 21. the movement of water through a membrane from an area of lower water concentration to one of higher concentration
  11. 23. description of the variety of different species in an ecosystem
  12. 25. amount of dissolved salts in water
Down
  1. 1. water that is safe for humans to drink
  2. 3. water containing a high concentration of calcium
  3. 4. characteristics used to describe a stream or river
  4. 5. changes in population may also result from natural causes or human activities
  5. 6. the circular movement of water particles that causes a change in pattern that moves along the water's surface
  6. 8. stream of water that moves within a larger body of water
  7. 9. changes that take place over a relatively short period and don’t last very long
  8. 11. a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms
  9. 12. technique for separating solutions that involves boiling and condensation
  10. 15. group of organisms of the same species that live in a particular area
  11. 16. is the average weather measured over a long period of time
  12. 22. eroded rock fragments and soil carried by water or wind
  13. 24. one of the most diverse and richest ecosystems