Matter

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Across
  1. 2. A compressible solid
  2. 6. process during which a gas directly into a solid-state on cooling
  3. 8. state of matter in which molecules are very loosely packed
Down
  1. 1. state of matter having only one free surface
  2. 3. A gas which helps in respiration
  3. 4. Two atoms of hydrogen and one atom of oxygen form a molecule of
  4. 5. Basic units of matter
  5. 7. Example of a liquid