4M Green Science/ Potato Clock 00-03275
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!
.STEAMers - ستيمرز
4M Green Science/ Potato Clock 00-03275
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!
.STEAMers - ستيمرز