How to make a light bulb with pencil lead.Crazy easy science project

  markp0177
2385   488.9K  

Light bulb made from pencil lead and jar. Step by step instructions, simply school project. We sell science projects too. As seen on "America Unplugged" on the sportsman channel.  ... 

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How to make a light bulb with pencil lead.Crazy easy science project
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