Circuits A circuit is a complete path along which a current may flow.A circuit consists of materials which are conductors (usually metals).The electrons flow when there is a difference in voltage across the wire. Think about how this steady hand game works. We use symbols to save time and space. It is easier to draw a symbol than to draw a lamp! 1 battery on its own is called a cell How would you draw the circuit for this diagram? Head over to STILE and complete your worksheet. What to do next... STILE (Online) Printable More Information? Back to Week 3 Next lesson