🔌 Copper Electrode Length by Ajax Scientific Review

This worked great for my son's science fair project. We have ordered a suitable zinc electrode for measuring potato electricity.

Works great. We used this for my son's 3rd grade science project (potato powered LED). With this length, we were able to cut the strip into three parts and still get enough functionality.

Purchased to teach a group of middle school children how electricity works and how they can use common objects to create an electrical charge. Using things like distilled water with salt, baking soda, vinegar and other items, we used a copper strip as one of the electrodes to get a large enough charge to light up a couple of LEDs.