vocabulary crossword

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Across
  1. 2. smallest particle of an element
  2. 3. definite shape definite volume
  3. 4. definite volume doesn't have a definite shape
  4. 5. force of gravity
  5. 8. measure of how much matter
  6. 10. group of atoms move as a single unit
  7. 11. a substance that cannot be broken down
Down
  1. 1. amount a three- dimensional space an object takes up
  2. 3. different that matter can exist
  3. 6. substance of two or more substances
  4. 7. anything with mass and volume
  5. 9. two or more substances remain the same substance