Across
- 2. The battery in a circuit is a _______ of electric current.
- 4. Electrical ________ are materials that allow electric current to flow through.
- 5. Plastic is an electrical ___________.
- 7. If too much electric current flows through the bulb, it will _______.
- 8. The metal ____ needs to be connected to the metal casing to form a closed circuit.
- 9. The filament is made up of __________.
Down
- 1. The switch _______ the flow of electric current in a circuit.
- 3. Electricity is a form of _______.
- 4. What material is the wire usually made of?
- 6. Which arrangement of electrical components provides more power?