Crossword Puzzle

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Across
  1. 5. two or more different atoms/elements that are chemically combined
  2. 7. ex: Ice
  3. 9. solid to gas
  4. 10. the study of matter
  5. 13. small particle with a negative charge of electricity flow of charge
  6. 15. amount of atoms in matter
  7. 17. ex: water
  8. 18. an atom or molecule with electrical charge
  9. 19. solid to liquid
  10. 22. gas to solid
  11. 23. periodic table of _
  12. 24. the amount of space an object ocupies
Down
  1. 1. liquid to solid
  2. 2. liquid to gas
  3. 3. smallest unit of matter that forms a chemical element
  4. 4. gas to liquid
  5. 6. 4th state of matter
  6. 8. change transitions between states of matter
  7. 11. one or more visible boundaries
  8. 12. no visible boundaries
  9. 14. the subject taught in this class
  10. 15. anything that has mass and volume
  11. 16. two or more substances combined, but not combined chemically
  12. 19. two or more atoms chemically combined that dont have to be different
  13. 20. ex: smoke
  14. 21. the ability to do work or cause change in matter