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Inventions 1: Edison and the Light BulbThis lesson is the first of a two-part series on technology and inventions. Students are introduced to the world of technology and inventions and how its ongoing development continues to affect all aspects of living—in both good and potentially bad ways. In Inventions 1: Edison and the Light Bulb, students learn how inventions are created to solve problems or improve the way things are done. The improvement of the incandescent light bulb by Thomas Edison is used as an example. 
More about this lesson plan:
Materials Needed: * Light bulb
* Telephone (actual or photo)
* Pencil
* Eraser
* Stapler
* Watch
* Scissors
* Other simple, handy "inventions" from classroom
* Poster paper
* Crayons
* Markers
Optional Activity Materials—Making a Light Bulb
* One small jar
* Cork stopper for a lid
* Three feet of shielded copper wire
* One 6-volt battery
* Thin iron wire (the best source for this is unraveled picture hanging wire)
An easier alternative:
* 1 C-cell battery
* 1 Flashlight bulb
* Coated copper wire with both ends stripped of coating
Source: © www.sciencenetlinks.com
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