4M-03275
What! No Batteries? Be a scientist as you discover how to power this digital clock using potatoes. Experiment to find out what other substances will power the clock – you’ll be amazed! Caution: High Voltage Inspiration and Fun!
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What! No Batteries? Be a scientist as you discover how to power this digital clock using potatoes. Experiment to find out what other substances will power the clock – you’ll be amazed! Caution: High Voltage Inspiration and Fun!