Conductors and Insulators

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Across
  1. 1. A clear material that does not conduct electricity
  2. 3. The last word of the abbreviation CPR - Cardio Pulmonary R
  3. 5. PPE that protects the hands
  4. 7. A hard material used in light bulb holders, power line insulators, tiles and china
  5. 8. Current that flows ibn one direction only
  6. 9. A flexible material used to cover electrical wires to prevent electric shock
  7. 11. The most commonly used conductor of electricity
  8. 13. The drive which causes the flow of free electrons
  9. 16. Abbreviation for Poly Vinyl Chloride
  10. 17. Center of an atom
  11. 20. A material that does not allow the flow of current to pass through easily
  12. 21. Anything that has mass and takes up space
Down
  1. 2. A common household metallic item used for wrapping or covering food
  2. 4. A material that allows the flow of current to pass through easily
  3. 6. Death or severe injury from contact with an electrical source
  4. 10. A material that comes from trees and does not allow electricity to pass through easily
  5. 12. This is measured in ohms
  6. 14. A thin material made from trees that does not conduct electricity
  7. 15. Lightning, fire and stars are examples of this
  8. 18. The best conductor of electricity
  9. 19. Free electrons