Electricity

2. A material that allows electricity to pass through is known as an electrical _________.
6. Current flowing through each of the bulbs is the same when bulbs are arranged in __________.
7. A ______ is used to open or close a circuit to control the flow of electricity.
10. An _________ socket may overheat and cause a fire.
12. When bulbs are arranged in __________, there are different paths for the current to flow to each bulb.
13. The part of a light bulb that glows and gives off light when electricity passes through it is the ________.
14. If there is a gap in the circuit, it is an ____ circuit.
15. Electricity can be harmful if it is not used ________.

1. For a bulb to light up, the circuit must be ______ so that there are no gaps in the path.
3. Electric _______ flows through a circuit.
4. As the number of bulbs arranged in series increases, the brightness of each bulb ___________.
5. Rubber and plastic are examples of an electrical _________ because they do not allow current to flow through.
8. When bulbs are arranged in parallel, if one bulb _______, the other bulbs can still light up.
9. Adding more batteries in series will increase the __________ of the bulbs in the circuit.
11. A _______ provides the source of electrical energy in a simple circuit.