This mission will introduce the concept of an electrical circuit. Apprentices will build a series of simple circuits, becoming familiar with the idea that a circuit requires a circular path for current to flow through. They will learn how to draw a basic circuit diagram, and begin to think of circuits as a network of various modular components that can be swapped and rearranged to modify the circuit’s function. This mission will lay the foundation for future missions involving circuitry and micro-controllers such as micro:bit and Arduino.