Chemical Changes Crossword Puzzle | Science Assignment | Ethan and Micah

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Across
  1. 2. Stuff gets destroyed over time
  2. 4. 2KI(aq)+Pb(NO3)2(aq)→2KNO3(aq)+PbI2(s)
  3. 6. UR MOTHER
  4. 9. The chemical after change
  5. 10. UR DEDDY
  6. 11. Changes in a chemical reaction
  7. 13. Water ---> Gas
  8. 16. The chemicals before change
  9. 17. Metal gets red
  10. 19. Fire/Water/Air/Earth
  11. 21. Long years, materials become rusty
  12. 22. Rain of Acid
Down
  1. 1. Substance with pH under 7
  2. 3. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)
  3. 5. Reaction needed for chemicals to change
  4. 7. Reaction when rain or snow falls
  5. 8. Substance with pH over 7
  6. 12. Neutral substance with pH 7
  7. 14. O2, Co2, H2, N2.
  8. 15. Fire eating
  9. 18. Boom
  10. 20. H2 + O = H20