Matter Crossword

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Across
  1. 3. solid to liquid
  2. 5. liquid to gas
  3. 6. solid to gas
  4. 8. liquid to solid
  5. 9. atoms are tightly packed
Down
  1. 1. has a definite volume, but indefinite shape
  2. 2. fourth state of matter
  3. 3. anything that takes up space
  4. 4. gas to liquid
  5. 7. gas to plasma