Science

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Across
  1. 2. chemical for Pb
  2. 4. chemical for Ni
  3. 9. something that cannot be seperated easily
  4. 10. Chemical for Kr
  5. 11. Chemical for K
  6. 13. breaking down
  7. 14. Type of germ
  8. 15. chemical for Na
Down
  1. 1. Chemical for C
  2. 3. is physical change reversible
  3. 5. some thing that could be seperated easily
  4. 6. chemical for Au
  5. 7. name for CaTe2
  6. 8. Chemical for Fe
  7. 12. a person that studies life