Science crossword

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Across
  1. 4. The element that we breathe in.
  2. 5. Nutrient that provides energy.
  3. 7. Drug that has a medical benefits.
  4. 9. Tube that food travels to the stomach.
  5. 10. Vital nutrients needed in small amounts.
  6. 13. The drug found in alcoholic drinks.
  7. 14. The periodic table is full of _______.
  8. 16. Organisms that eat other organisms.
  9. 19. Organism that makes its own food.
  10. 20. Variation which comes from parents.
  11. 21. Lacking a certain vitamin or mineral.
Down
  1. 1. We breathe out carbon _________.
  2. 2. Elements are listed in the _____ table.
  3. 3. DNA is stored here.
  4. 6. The _______ solution tests for sugars.
  5. 8. The area in which an organism lives.
  6. 11. Smallest particle is called an ____.
  7. 12. Two oxygen atoms bond to form a ______.
  8. 15. Table salt is called _______ chloride.
  9. 17. Our cells are made up of 70% _____.
  10. 18. Nutrient used for growth and repair.