4M Project Kits - Green Science Potato Clock Kit
$19.99
{{option.name}}:
{{selected_options[option.position]}}
{{value_obj.value}}
4M Project Kits - Green Science Potato Clock Kit The ever popular award winning Potato Clock! What? No batteries? Be a scientist and discover how to power this digital clock using just potatoes. Experiment to find out what other things will power the clock - you will be amazed! Ages 8+
Show More
Show Less