MAKING A SODA-POWE RE D BATTERY
Cut a strip of aluminum from the soda can.
1. Cut a 3/4-inch-wide strip from the side of the soda can. Ensure that’s it’s
slightly longer than the plastic cup’s height; if this isn’t possible, don’t worry —
you can just bend the top of the strip and let it hang over the edge of the cup
and into the fluid. Instead of cutting the can, you may purchase aluminum strips
from a hardware store.
2. Aluminum foil is not an effective replacement for an aluminum strip; don’t use
it!