Matter Crossword Puzzle

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Across
  1. 2. Two or more atoms
  2. 4. How stuff interacts with stuff and changes
  3. 5. The amount of space something occupies
  4. 7. Positively charged particles with mass
  5. 10. State of matter that takes the shape of its container
  6. 11. Made out of one type of atom
  7. 13. State of matter that takes both the shape and volume o
Down
  1. 1. Charge-less particles with no mass
  2. 3. Negatively charged particles with no mass
  3. 4. More than one type of atom chemically combined
  4. 6. Anything that has mass or volume
  5. 8. State of matter that have molecules that are closely bonded
  6. 9. Two or more substances physically combined
  7. 12. The amount of matter in an object