Return to Unit List Grade 3 Lesson Review   Type your name:   You can put together a cell, bulb, and wire to form a(n)bulbcellcircuitsystemSelect your answer, or group of things that work together. Just like a train set, these parts have to be put together in a certain way for the system to work. These parts form an electrical cellcircuitbulbsystemSelect your answer. Electricity is a form of cellsystemcircuitenergySelect your answer. The source of electricity is the circuitcellenergysystemSelect your answer. The system uses electrical energy to light the circuitbulbcellenergySelect your answer.