How to make a light bulb Science Project

The light bulb is a pretty simple invention that you can make with simple household products. Learn how to make a light bulb for a science project from batteries, a jar, and pencil lead.
The pencil lead will glow bright when it is hooked up to batteries.
This fun science project uses batteries, pencil lead, a jar, some wire, and duck tape to make a cool but very crude light bulb.
Try this at home.