Potato Clock
Description: Two potatoes are pierced by zinc and copper electrodes. A small clock runs on the voltage produced.
Source: Commercial apparatus, Conrad, Joseph, Prof., UW-River Falls
Year: 1994 Vol: N/A Page: N/A
Keywords: Potato, Zinc, Copper, Electrodes, Electric Cell
Rating: 
Hazard: Low
- Electric shock hazard for display if used
Effectiveness: Average
- Results are observable with guidance
- Somewhat connected conceptually to course material
- Mild effects are seen by audience
- Hard to perceive or observe
- Some counterintuitive concepts
- Time to results is low
Difficulty: Low
- Use of non-toxic systems
- Manipulations are simple for most to perform
- Demos in which a display is used
- Simple procedures
Safety Precautions:
- Eye protection required
- Gloves required
- Use UL approved three-prong plug and outlet
Class: Electrochemistry, Electrochemical Cells
Division: General
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