Chemical Changes Crossword Puzzle | Science Assignment | Ethan and Micah

Edit Answers
123456789101112131415161718192021
Across
  1. 7. Changes in a chemical reaction
  2. 8. Long years, materials become rusty
  3. 10. Neutral substance with pH 7
  4. 11. The chemicals before change
  5. 13. Fire eating
  6. 15. Materials that explode
  7. 18. Fire/Water/Air/Earth
  8. 19. Reaction needed for chemicals to change
  9. 20. Reaction when rain or snow falls
  10. 21. 2KI(aq)+Pb(NO3)2(aq)→2KNO3(aq)+PbI2(s)
Down
  1. 1. Water ---> Gas
  2. 2. H2 + O = H20
  3. 3. Substance with pH under 7
  4. 4. O2, Co2, H2, N2.
  5. 5. Units used to measure if something is an acid or base
  6. 6. Items gets destroyed over time
  7. 9. Substance with pH over 7
  8. 12. Metal gets red
  9. 14. Rain of Acid
  10. 16. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)
  11. 17. The chemical after change