This instructable will show you how to build a water powered clock. Here is what you will need.
1.zinc and copper leads
2. connection wires(positive or negative)
3.3 bottles of water
4. low voltage digital clock display
5. water bottle caps

Step 1: Attaching the Leads

Take your copper and zind rods and wrap the positive wire around the copper rod. Do the same thing with the zinc rod to the negative wire.

Step 2:

Take your connection wire and connect one end of the wire to a copper rod and connect the other end to the zinc rod.

Step 3: Attaching the Leads to the Battery

Take your connection wire and put the copper end into the right water bottle.Take the zinc end and put it into the left water bottle.Take your digital display and attach the zinc end into the right water bottle.Take your copper end and place it into the left water bottle.