| A | B |
|---|
| A continuous flow of negative charges | electric current |
| A device that opens or closes a circuit | switch |
| Materials that allow electricity to pass through them most easily | conductors |
| Materilas that don't let electricity move easily through them | insulator |
| Dry cells that provide electrical energy | batteries |
| The part of the light bulb that a current passes through | filament |
| Type of light bulb that doesn't waste electricty | fluorescent bulb |
| Invented the light bulb | Thomas Edison |
| A circuit with only a single path for the current to follow | series circuit |
| A circuit with more than one path for an electric current to follow | parallel |
| A device that opens a circuit by melting | fuse |
| A switch that opens a circuit by shutting off | circuit breaker |
