mitchells crossword for sience

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Across
  1. 3. change when it changes color it is a_____
  2. 4. it has a melting point of 1560 K
  3. 6. the chemical symbol is B
  4. 10. where all the elements are shown
  5. 13. the chemical symbol is Fe
  6. 14. when the substance turns from a liquid to gas
  7. 16. it doesn't really ____ to mee
Down
  1. 1. the brain of the atom
  2. 2. has an atomic number of one
  3. 5. it has an atomic mass of 267.122
  4. 7. you breath this in every day to live
  5. 8. _____is the building block of matter
  6. 9. has the chemical make up of H2o
  7. 11. it forms to any container that it is put in
  8. 12. when the substance turns from a solid to a liquid
  9. 15. has an atomic number 0f 69