What is Electricity?

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Across
  1. 4. a good example of a conductor
  2. 5. the type of charge that results when electricity cannot flow
  3. 8. a good example of an insulator
  4. 9. an example of a control device in a circuit
  5. 11. part of the atoms nucleus that has a neutral charge
  6. 13. materials that electricity cannot flow through easily
  7. 14. an example of a power source in an electrical circuit
  8. 15. part of the atom outside the nucleus that has a negative charge
Down
  1. 1. the basic unit that makes up all matter
  2. 2. the type of circuit where one path in the circuit is cut some of the lights still work
  3. 3. the type of circuit when a wire is cut all of the lights go out
  4. 6. when the lights in a circuit are on, then the circuit firms a _____ loop
  5. 7. part of the atoms nucleus that has a positive charge
  6. 10. the material that provides a path for electricity to flow
  7. 12. an example of a load in an electrical circuit
  8. 16. is the flow of electricity in a circuit, kind of like a river
  9. 17. electricity flows from _________ to positive