Science Crossword: Design a self-made crossword puzzle using 10–15 scientific terms from the first few chapters of "Curiosity".

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Across
  1. 1. State of matter that fills the container
  2. 4. Amount of matter in an object
  3. 7. Space occupied by an object
  4. 9. Force that pulls objects toward Earth
  5. 10. Smallest particle of a substance (made of atoms )
  6. 12. Mass per unit volume
  7. 13. Group of similar cells
Down
  1. 2. Smallest unit of an element
  2. 3. basic unit of life
  3. 5. State of matter with fixed shape
  4. 6. A push or pull
  5. 8. Ability to do work
  6. 10. Anything that has mass and occupies space
  7. 11. State of matter that flows but has fixed volume