* Dissolved Ions: When salt (sodium chloride, NaCl) dissolves in water, it breaks down into positively charged sodium ions (Na+) and negatively charged chloride ions (Cl-). These ions are free to move within the water, creating a pathway for electrical current.

* Electrolyte: Solutions like salt water, which contain free ions, are called electrolytes. Electrolytes conduct electricity because the ions can carry the electrical charge.

* Conductivity Varies: The conductivity of salt water depends on the concentration of salt. The more salt dissolved, the more ions are present, and the better the conductivity.

In contrast, pure water is a very poor conductor of electricity. This is because pure water contains very few free ions.

Important Note: Even slightly salty water can be dangerous. Never handle electrical equipment or appliances with wet hands, especially if the water contains salt.