What! No batteries? Be a scienctist as you discover how to power this digital clock using potatoes.Experiment to find out what other subtances will power the clock you'll be amazed!For Ages 8
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What! No batteries? Be a scienctist as you discover how to power this digital clock using potatoes.
Experiment to find out what other subtances will power the clock you’ll be amazed!
For Ages 8
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