The Ionic Game of Water

TLSCB002

In his school, Jugaadu learned that salty/impure water and graphite pencile both are conductors of electricity. He wants to explain it to his younger sister Shruti practically. How he can do this?
science kit
  1. Pour the distilled water into the Petri plate.
  2. Now make the circuit connection with led, battery and connect graphite leads to the end terminals of alligator clips.
  3. See if the distilled water is able to conduct electricity.
  4. Now add salt in the water to increase the conductivity. And also add pH indicator in the solution.
  5. Now conduct electricity through the solution.