The metal copper- however, US pennies are now copper plated zinc.
they are all made of copper
Cooper is made into many things such as pennies and electricity wires
Answer why does the person who made a circuit a probably connect the wires to a penny
Copper
Pipes, wires.
copper
The pipes are PVC electrical conduits.
copper
Through Wires, Pipes and stuff
water/liquid
Copper
Iron pipes are made of iron.