Click on 'Intro.' Use the materials on the left to create a light bulb. What do you need to make the bulb light up?

Draw a simple sketch that illustrates how you constructed the circuit.

Take a look at these circuit diagrams. 

Which will work? Which need repairs? Test them out in the simulation

Describe all requirements a circuit must meet to light the bulb. 

List at least three possible explanations for a situation in which the light bulb did not glow?  You can try them in the simulation.

What role does the switch play in the circuit?  How does it carry out this role? 

How is this different from static electricity?