Lemon Clock!

You look at clocks all day long, but do you really know how one works? This science kit will teach you! Make your own digital clock using nature's electricity. How about using a potato for power? Or a lemon? Pick a vegetable, go on, any vegetable...and see if it also powers the clock! This 'sweet' educational toy includes over 18 experiments including LEDs, chemical reactions, electro-chemistry, electro-magnetism, acid/base substances, and invisible inks. Who knew a lemon clock could be so sweet!