Matter Crossword Puzzle

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Across
  1. 2. the fourth state of matter after solid, liquid, and gas
  2. 6. a state of matter in which the matter retains its shape
  3. 7. liquid or gas
  4. 8. an object's mass per unit volume
Down
  1. 1. a state of matter in which the matter fills all the available space
  2. 3. a state of matter in which the matter takes the shape of any surrounding container
  3. 4. any object that has mass and takes up space
  4. 5. the amount of force matter pushes on an area