It would also be fun to take some time to study your state's flag. For ideas about making your own flag, be sure to see the fine arts section of this lesson series. Young Inventor from Beyond Five in a Row , Volume 1. As you know, Tom Edison's greatest contribution to modern life was the invention of the light bulb. Take this opportunity to explore with your student how a light bulb works.
Electricity is applied to the base of the light bulb and forced through the filament.
The filament is the thin, coiled metal wire clearly visible in the bulb. The filament is usually made from tungsten metal. As electricity passes through the filament the wire is heated to nearly 5000 degrees. As the filament heats up it gives off light. Try looking at a variety of light bulbs including automobile headlights, flashlights, etc.