Science Crossword Puzzle

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Across
  1. 1. the amount of matter in something
  2. 7. to disperse in water
  3. 8. a combination of two or more objects
  4. 9. how tightly matter is packed in an object
Down
  1. 1. made up of particles
  2. 2. able to dissolve
  3. 3. characteristics of a substance
  4. 4. far apart particles in an object
  5. 5. tightly packed particles in an object
  6. 6. loosely packed particles in an object
  7. 10. a form of matter