Classification of Matter

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Across
  1. 1. Amount of matter in an object
  2. 5. Two or more elements chemically bonded
  3. 6. Fourth state of matter with ionized particles
  4. 8. Non uniform mixture with visible parts
  5. 10. Anything with mass that takes up space
  6. 11. Two or more atoms bonded together
  7. 12. Two or more substances physically combined
  8. 16. Liquid to gas phase change
  9. 17. Mass per unit volume (D = m/V)
  10. 18. Gas to solid phase change
  11. 19. Tiny piece of matter
Down
  1. 2. State of matter with definite shape and volume
  2. 3. Smallest unit of an element
  3. 4. Solid to gas phase change
  4. 7. Amount of space an object occupies
  5. 8. Uniform mixture throughout
  6. 9. Pure substance that cannot be broken down
  7. 13. State of matter with indefinite shape and volume
  8. 14. State of matter with definite volume, indefinite shape
  9. 15. Gas to liquid phase change