What is Electricity?

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Across
  1. 3. increases in a lamp when more electric current flows
  2. 4. invented the light bulb, the first practical use of electricity
  3. 5. science of working with and controlling electricity
  4. 8. measure of the strength of an electrical charge
  5. 10. the metal most often used to make wires
  6. 12. converts electricity into light
  7. 15. when a switch is turned on, the circuit is ________
  8. 16. made with materials like zinc and magnesium dioxide that react with each other to create electricity
  9. 17. connects or disconnects the wires in a circuit
  10. 18. what the 0V or negative side of the battery is referred to
Down
  1. 1. the side of a battery electricity flows out of
  2. 2. the type of reaction in batteries that produces electricity
  3. 6. type of device that uses the flow of electricity as energy and is controlled mechanically
  4. 7. attraction and repulsion between sub-atomic particles in a material
  5. 9. the material in which electrical effects were first observed
  6. 11. unit of measurement named after Alessandro Volta who invented the battery
  7. 13. can be as long as desired without affecting circuit performance
  8. 14. the Greek name we get the word electricity from
  9. 19. when circuit is open, the switch is turned ________