{{ :teacher's guide.gif?nolink&|}} ====== Zinc-Copper Battery with Nail and Salt-water teacher's guide ====== Most of this lesson will be similar or identical to the salt-water battery lesson. The major difference involves the chemical reaction... WHICH ANNA WILL WRITE UP SOON. OR NED COULD DO THIS TOO. ANNA WILL ALSO WRITE UP AN EVALUATION FROM TTI LAST SUMMER!