Science Projects And Inventions

YOU  NEED :

• 18  inch length electrical wire
• A small bulb
• A holder
• Battery

Connect two 18 inch lengths of electrical wire to the connectors of a bulb holder. Set a small bulb in the holder. Connect the other ends of the wires to the terminal of a battery with clips. As you complete the connections, the bulb will light up because the circuit is complete.

HOW DOES IT WORK?

Current flows from the positive terminal of the battery towards the bulb.  Inside the bulb it flows through the filament towards the negative terminal of the battery. Since the path is not broken, the circuit is complete and the bulb lights up.