Classifying Matter

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Across
  1. 1. the measurement of something from end to end
  2. 5. how much space something occupies
  3. 8. the process of grouping things according to shared characteristics
  4. 10. a characteristic, quality, or attribute of something
  5. 11. property of matter where pressure is measured compared to atmospheric pressure
  6. 14. property of matter having to do with if the surface appears shiny, dull, or somewhere in between
  7. 15. a substance that cannot be physically broken down into anything simpler
  8. 18. diverse in content; being of different kinds
Down
  1. 2. looking uniform or similar
  2. 3. property of matter having to do with mass per unit of volume
  3. 4. property of matter that describes the transparency level
  4. 6. two or more elements or compounds mixed together physically
  5. 7. anything takes up space or has mass
  6. 9. property of matter having to do with how light is reflected or absorbed
  7. 12. each of 118 known types of atoms that are the building blocks of matter
  8. 13. property of matter having to do with the ability to resume original shape after being stretched or compressed
  9. 16. two or more elements that are chemically combined
  10. 17. how much of something there is