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Across
  1. 4. frozen water
  2. 6. the transition from the solid togas state
  3. 8. a colorless liquid that forms in oceans
  4. 9. melted substance
  5. 13. a metric unit of mass equal to one thousandth of gram
  6. 17. the amount of space an object occupies
  7. 18. water which collects when in contact w/H Air
  8. 19. the strength & vitality required for sustained activity
Down
  1. 1. point temperature at which a liquid becomes solid
  2. 2. the process by which one thing absorbs something
  3. 3. anything that has mass & take up space
  4. 5. process of turning liquid to vapor
  5. 6. state of matter that is firm or stale
  6. 7. a chemical element of atomic number 13
  7. 10. having no fixed shape & no fixed volume
  8. 11. a material thing that can be seen or touched
  9. 12. a physical force extended on or
  10. 14. point temperature at which a solid becomes liquid
  11. 15. the degree of compactness of a substance
  12. 16. a basic unit of a chemical element