temperature is a measure of heat0 & electrical current is made of electrons flowing in one direction ->  electrons flow in one direction in the wires when an electrical circuit is working properly  electrons flow in one direction in the wires when an electrical circuit is working properly & a wire is made of atoms ->  electrons flow in one direction through the atoms in wires when an electrical circuit is working properly  flowing is a kind of movement & if something moves through something else then that something will collide with that something else ->  if something flows through something else then that something will collide with that something else  electrons flow in one direction through the atoms in wires when an electrical circuit is working properly & if something flows through something else then that something will collide with that something else ->  electrons will collide with the atoms in wires when flowing in one direction  electrons will collide with the atoms in wires when flowing in one direction & atoms colliding increases the kinetic energy ->  electrons flowing in wires increases the kinetic energy of the wires  electrons flowing in wires increases the kinetic energy of the wires & temperature is a measure of the total kinetic energy of an object ->  electrical current running through a wire causes the temperature of the wire to increase  to add something means to increase something & warm / becoming warm means heat is added ->  warm / becoming warm means heat increases  warm / becoming warm means heat increases & temperature is a measure of heat ->  warm / becoming warm means temperature increases  electrical current running through a wire causes the temperature of the wire to increase & warm / becoming warm means temperature increases -> electrical current running through a wire causes that wire to become warm