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Created with Fabric.js 1.4.5 The Life Cycle of a light bulb First step: Raw materials The first step in the life cycle of a light bulb is the raw materials. The raw materials for a lightbulb are soda ash,lime,coal and saltfor the glass bulb.Copper, zinc andaluminum for the base.And tungsten and binder for the filament. Second step:Materials processed The second step is materials processed.To make the glass bulb they use a ribbon machine. To make the base theyuse molds shaped like screws.And to make the filament they mixthe tungsten and binder together and connect them to the lead in wires. Third step: maunfacturing The third step is manufacturing.Once the filament, base and theglass bulb aremade they use machines toput it all together.Next they fill the casing with amixture.Finallythey seal thebase and the glass bulb together andthen they test it. Forth step :Transportation/market The forth step is transportation/market. After the bulbs aremade they ship them inboxes to places like Walmart,Home Depot, Canadian Tireand Lowe's. The price range isfrom 10.00 $ to 30.00$ forlight bulbs. But it depends onwhat store you get them at. Fifth Step: Disposal The last step is disposal.You can reuse a lightbulb and turn it into stuff like a planter,salt and pepper shakers or a light bulb ship. Energy effcient light bulbs can be recycled butincandescent can'tbe recycled. If you are going to throw out a light bulb wrap it in paper and put itin the trash. Fun Facts Light bulbs take up25% of our electric bill.The light bulb was madein the 1800'sIf there is a lot of dust on a light bulb it will block half the light80% of all light bulbs areincandescent bulbs.
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