How to build your own operation game…

Materials:

Wire and wire strippersBox Metal TweezersLED light 2 AA Batteries and a holderDrinking Straws Tin foil

Circuits

• Electricity travels in a circuit. A circuit is a route around which an electrical current can flow, beginning and ending at the same point.A circuit requires at least two wires to handle the

flow of the current.1. One wire (known as “hot”) carries the current from

the source to where it is used.2. The other wire (neutral) carries the current back.3. Most electrical circuits also have a third wire called

a ground wire.

Types of Circuits

• An open circuit is a circuit that has been disconnected by a switch or another open in the line.

• A closed circuit is a circuit that is continuously providing a complete path for the flow of electricity.

• A conductor is a material that allows electricity to easily pass along it or through it.– Copper, aluminum or

water are good conductors

• An insulator is a material that prevents or reduces the passage of electricity.– Rubber, porcelain, and

glass are all good electrical insulators

• QUIZ TOMORROW! – Cost calculations– Ways electricity is produced– Circuit info– Electrical vocublary

Now to the game building…

Here is what your circuit should look like: