Matter Crossword Puzzle

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Across
  1. 4. how heavy or light an element is
  2. 6. how much space an object takes up
  3. 8. how thick an object is
  4. 9. the combination of 2+ elements combined together
  5. 12. a table full of elements known to every human today
  6. 13. a object that runs away apart from each other
  7. 15. the amount of negative charges in a atom
  8. 16. how much an object weighs
Down
  1. 1. going from a liquid -> gas
  2. 2. how much an element weighs
  3. 3. a group located in the middle of an atom
  4. 5. an element that is the lightest element ever known to every human today
  5. 7. a object that circles around each other
  6. 10. a object that holds its shape/structure and vibrates in place
  7. 11. the amount of positive charges in a atom
  8. 14. the basic building blocks to life