Electricity

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Across
  1. 3. thirty-five percent of natural sunlight is made up of
  2. 5. A positive electrode
  3. 7. changes alternating current to direct current
  4. 8. measuring the resistance of an electrical current
  5. 12. used in facial and scalp treatments
  6. 13. substances that speed up chemical reactions
  7. 14. An insulator
  8. 15. 1/1000 of an ampere
  9. 16. movement of electrons from one atom to another along a conductor
  10. 17. use of electrical currents to treat skin
  11. 18. positive or negative poles of an electrical current
  12. 19. apparatus that changes direct current to alternating current
Down
  1. 1. distance between successful peaks of electromagnetic waves
  2. 2. any material that conducts electricity
  3. 4. process of infusing water soluble products into the skin
  4. 6. completes an electric circuit and carries the current safely away
  5. 9. DC
  6. 10. switch that automatically interrupts or shuts off an electrical circuit
  7. 11. measures the pressure or force that pushes electric current forward