Potato Clock Green Science Project Experiment Kit with Retail Cardboard (Folded)
### BEWARE OF KNOCK OFF! Authentic Digital Potato Clock comes with a beautiful Retail Cardboard (as shown). ###(Since the retail cardboard is thin and weak, we will fold it up when delivery. Please note.)What?! No Batteries?! That's right! Run a clock off of 2 potatoes!! Finally, a chance to play with your food! -- Learn about electricity and chemical reactions in an innovative way. This unit is designed to demonstrate the principle of an electrochemical cell. -- The Two Potato Clock allows you to generate enough electricity to run a digital clock? Using potatoes! Just push the zinc and copper electrodes into the potatoes causing an oxidation/reduction reaction that is converted to low voltage. -- You can also try other fruits, vegetables and beverages to see what works like: -- Apples -- Avocadoes -- Bananas -- Cucumbers -- Lemons -- Limes -- Oranges -- Salt Water -- Soda -- Tomatoes -- the possibilities are endless!Kit contains:Digital clock with wiresPotsConnecting wires transparent tapesCopper and zinc stripsDetailed instructionsYou will need to supply your own potatoes, etc. ;-)