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 How Do Twisty Light Bulbs Work?

How Do Twisty Light Bulbs Work?
Reading Level
     edHelper's suggested reading level:   grades 6 to 8
     Flesch-Kincaid grade level:   7.58

Vocabulary
     challenging words:    twisty, efficiency, argon, fluorescent, emit, efficient, heated, ultraviolet, unwanted, circuit, natural, mercury, compact, electronic, advantage, power
     content words:    One CFL

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How Do Twisty Light Bulbs Work?
By Sharon Fabian 		  
1     Compact fluorescent lights (CFLs) are an efficient new way to produce light. They come in the familiar twisty light bulb shape and in other forms as well.
 
2     CFLs are much more efficient than traditional incandescent light bulbs. They produce more light using the same amount of electricity.
 
3     Traditional incandescent light bulbs use a filament to produce light. The filament is heated until it is white-hot, so these light bulbs give off a lot of unwanted heat. CFLs do not use a filament and do not produce as much heat.
 
4     There are two main parts to a compact fluorescent light bulb, a gas-filled tube and a ballast.
 
5     The gas-filled tube that makes up the main part of a CFL contains argon and a small amount of mercury. The inside of the tube is coated with phosphors.

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