Chemistry Crossword

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Across
  1. 3. Material formed by mixing two or more substances
  2. 6. Major element in bone structure
  3. 7. Process in which a solid changes directly into gas
  4. 9. Element with atomic number 10
  5. 10. State of water at 0 °C
  6. 12. Instrument used to measure liquid accurately
  7. 14. Green pigment in plants
  8. 17. Gas required for burning
  9. 18. Device used to measure temperature
Down
  1. 1. Device used by submarines to view the water surface
  2. 2. SI unit of time
  3. 4. The smallest particle of an element
  4. 5. Tool used to magnify small objects
  5. 8. Substance that turns blue litmus paper red
  6. 11. Negatively charged particle
  7. 13. Liquid that dissolves other substances
  8. 15. State of matter with fixed volume but no fixed shape
  9. 16. lightess element in the periodic table