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Step 5Items to remember
**Remember** The red wire connected to the first lemon (at the penny) is the "+" positive side. On the opposite side of the lemon is the cotter-pin which is the "-" negative side.
Electrons actually flow from the "-" (cotter pin) end of our lemon battery through the LED (making it glow) then back to the "+" (penny) end of the battery. This is an electronic circuit. The LED glows intensity varies with the amount of lemons used in this configuration.
Electrons actually flow from the "-" (cotter pin) end of our lemon battery through the LED (making it glow) then back to the "+" (penny) end of the battery. This is an electronic circuit. The LED glows intensity varies with the amount of lemons used in this configuration.
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