Drag the components from the side bar into the designated boxes to create your circuit

Click the button to toggle between the circuit diagram and realistic images

When using the switch, double click to open and close it

The level selection page allows you to choose your question based on your desired topic

If your answer is incorrect the background will turn red, an audio cue will play and the scientist will encourage you to try again.

If you are stuck, click on the scientist for a hint

If your answer is correct the background will turn green, an audio cue will play and the scientist will be happy. The amameter will also display the correct current, and if you are have toggled the symbols you can see how the components activate. You will then be asked if you wish to choose a different level or remain on the same one.