Chemistry Section 1 crossword puzzle

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Across
  1. 6. Observable, not measurable
  2. 7. alert the potential dangers of a chemical products
  3. 9. Able to catch on fire easily
  4. 13. H,Fe,O,ne
  5. 14. Triangle sign
  6. 15. Rhombus sign
  7. 17. model Electron cloud
  8. 19. H2SO4, Nacl, H2O, O2
  9. 20. Prevent microbial growth
  10. 21. Electron cloud surrounds it
  11. 24. Contains extra information on chemical and physical hazard
  12. 25. Model Aka Plum Pudding model
  13. 28. Can make into thin sheets
  14. 29. Fog, Smoke, Jello, Air
Down
  1. 1. model. Nuclear
  2. 2. model Other name for Billiard Ball
  3. 3. Smallest unit of matter
  4. 4. Using microorganisms to produce food/beverages
  5. 5. Makes up everything
  6. 7. Mechanical, Suspension, Colloids
  7. 8. Draws water out of microbes in food
  8. 10. Model
  9. 11. Boiling point, solubility, freezing point, conductivity
  10. 12. Saltwater, Vinegar, Bleach
  11. 16. Octagon sign
  12. 18. Heterogeneous and Homogeneous
  13. 22. Same (solutions)
  14. 23. change Cutting paper
  15. 26. for safety of a workplace that uses chemicals or minerals that maybe harmful
  16. 27. Change Colour change of a substance