Final answer:
Prior to making a continuity check in an electrical circuit, the circuit should be set up properly and test points with the same potential should be examined.
Step-by-step explanation:
Prior to making a continuity check in an electrical circuit, several steps must be taken. First, set up the circuit as shown, ensuring that the test substance is held between the two crocodile clips. Connect the wire leads to the cells and the light bulb should be connected into the circuit. Once the circuit is set up, the next step is to test points with the same potential to examine the set-up.