The easiest materials to use with vegetable and fruit batteries are probably zinc-coated nails and copper wires.
(The easiest materials; to use; with vegetable and fruit batteries) (The easiest materials to use with vegetable and fruit batteries; are probably; zinc-coated nails and copper wires)
The easiest materials The easiest materials to use with vegetable and fruit batteries
to use are probably
with vegetable and fruit batteries
zinc-coated nails and copper wires