I tested some things on my circuit tester and the conductors lit up and the insulators didn’t. For my circuit tester i learned to strip wire and how to tell if it was an insulators or conductors. I also  learned how to connect the wires together.

11 out of 12 are metal on the conductor list.  I thought it was kind of weird how the salt water was a conductor but the regular bottled water was a insulator. I thought maybe that the salt in the water has tiny pieces of iron or metal in the salt. That’s just a guess. The conductors energy just flows and then lights up the circuit tester.

The insulators don’t have energy to flow freely.  None of the insulators were metal.