Matter crossword

12345678910111213141516171819
Across
  1. 2. a colorless odorless highly flammable gas
  2. 3. The invisible gaseous substance surrounding the earth
  3. 4. a red-brown metal
  4. 6. fog or haze combined with smoke
  5. 7. A nonmetal which has 2 main forms
  6. 8. A substance that gives seawater its characteristic taste
  7. 9. a soft silver white metal
  8. 10. a powdery substance made with calcined lime and clay
  9. 13. compound of a metal with the hydroxide ion OH
  10. 16. a mixture in which the composition is not uniform throughout the mixture
  11. 18. temperature at which liquid boils and turns to vapor
  12. 19. The ability to be dissolved especially in water
Down
  1. 1. properties are intermediate between those of metals and solid nonmetals
  2. 2. a mixture in which the composition is uniform throughout the mixture
  3. 5. reddish or yellowish brown flaky coating of iron oxide
  4. 11. Ability to support combustion
  5. 12. capability of being shaped or extended
  6. 14. The quality or condition of being hard
  7. 15. The quality of being toxic or poisonous
  8. 17. is chemical element with symbol Fe