by American Scientific
Buy new:
(Visit the Best Sellers in Time Clocks list for authoritative information on this product's current rank.)
Not just for potatoes anymore! Discover where the energy comes from to power up this digital clock using nothing more than common household items like potatoes, apples, bananas, salt water, soda pop, and tomatoes! 5.5 x 9 x 2.5 inches. Comes with Teachers Guide.
No comments:
Post a Comment