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Across
  1. 2. Energy transfer by waves
  2. 5. Mass times velocity
  3. 6. Reaction that releases heat
  4. 8. Property opposing change in current
  5. 10. Distance between wave peaks
  6. 11. Intermediate electrical conductor
  7. 14. Basic on the pH scale
  8. 15. Emission of electrons by light
  9. 17. Material’s opposition to current
  10. 19. Rate at which work is done
  11. 21. Heat transfer through contact
  12. 22. Allows current in one direction
  13. 25. Semiconductor switching device
  14. 26. Acceleration of a chemical reaction
  15. 28. Bending of waves around edges
  16. 29. Number of cycles per second
  17. 30. Heat transfer by fluid motion
  18. 31. Upthrust in a fluid
  19. 32. Band of colors or frequencies
  20. 33. Loss of electrons in a reaction
Down
  1. 1. Ability to store electric charge
  2. 3. Height of a wave
  3. 4. Measured addition to find concentration
  4. 7. Resistance to change in motion
  5. 8. Opposition in an AC circuit
  6. 9. Separation by boiling point
  7. 12. Bond formed by shared electrons
  8. 13. Mass per unit volume
  9. 16. Gain of electrons in a reaction
  10. 18. Same protons, different neutrons
  11. 20. Reaction that absorbs heat
  12. 23. Circuit that produces a repeating signal
  13. 24. Force over distance
  14. 27. Material with zero electrical resistance