Science

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Across
  1. 1. observations
  2. 4. an instrument to weigh things
  3. 5. ecological system
  4. 7. an organism that hunts
  5. 8. Living thing in an ecosystem (cells)
  6. 15. Non living thing in an ecosystem
  7. 16. is a pure substance made of only one type of atom
  8. 18. the process for a plant to turn sunlight into food
  9. 19. subatomic particle found in the nucleus of every atom
  10. 20. an organism that gets hunted
Down
  1. 2. something with no natural predators
  2. 3. somebody who works in science
  3. 6. an instrument to hold usually liquid items
  4. 9. Living thing
  5. 10. the building blocks of life
  6. 11. ecosphere
  7. 12. powerhouse of the cell
  8. 13. deoxyribonucleic acid
  9. 14. a narrow tool used to measure and transfer precise volumes of liquid
  10. 17. the international unit of temperature