1. Inside an Incandescent Light Bulb

2. You are will be using an incandescent light bulb to build circuits in class.

3. Incandescent Light Bulb An incandescent light bulb is an electric light bulb that passes electric current through a filament. This heats up the filament until it produces light.

4. Filament Wire

5. Did you notice where the wires are in an incandescent light bulb? If not, look back at the previous picture... When you build a circuit, does it matter where the wire touches the light bulb?