Chemistry vocabulary

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Across
  1. 1. an organism that makes its own food
  2. 3. an undeerwater vehicle built of strong materials to resist pressure at depth
  3. 6. the area drained by a river and its tributaries
  4. 8. the movement of deep, cold, and nutrient rich water to the surface
  5. 9. two or more atoms held together by bonds
  6. 11. the tendency of water molecules to stick to eachother
  7. 13. the amount of space something occupies
  8. 14. tiny algae and animals that float in water and are carried by waves and currents
  9. 15. measure of the amount of matter in a substance
  10. 16. medicine that kills or slows the growth of bacteria
  11. 18. prepared or created artificially man-made not found in nature
Down
  1. 1. underground bed or layer yielding ground water for wells and springs etc
  2. 2. point the temperature below which a solid turns into a liquid
  3. 4. term that describes an organism that lives on land
  4. 5. the amount of matter in a given space, mass per unit volume
  5. 7. the ability of a substance to be hammered or beaten into thin sheets
  6. 9. attraction between opposite poles
  7. 10. horizontal row on the periodic table
  8. 12. nitrogen compounds used for growth by plants and algae
  9. 17. a measure of how acidic or basic a solution is