* Salt dissolves in water: When salt (sodium chloride) is added to water, it dissolves, meaning the salt molecules become evenly distributed throughout the water.

* Boiling point elevation: Adding salt to water raises its boiling point. So, you'll need to heat the water to a higher temperature than 100°C (212°F) to make it boil.

* Salt remains dissolved: Even when the water boils, the salt remains dissolved in the water vapor.

How to separate salt from water:

You can separate salt from water through evaporation. Here's the process:

1. Heat the water: Heat the saltwater solution in a pan or container.

2. Evaporation: As the water heats up, it evaporates, turning into water vapor.

3. Salt remains: The salt, which has a much higher boiling point than water, remains behind in the pan.

4. Crystallization: As the water evaporates, the salt concentration increases. Eventually, the salt will start to crystallize and precipitate out of the solution.

Methods for Evaporation:

* Simple evaporation: Heat the solution in a shallow pan. This is slow but effective.

* Solar evaporation: Use the sun's heat to evaporate the water. This is a very slow process, but it doesn't require any additional energy.

* Vacuum evaporation: Use a vacuum to lower the boiling point of water, speeding up the evaporation process.

* Distillation: A more sophisticated method that involves heating the saltwater and collecting the evaporated water in a separate container. This produces pure water, leaving the salt behind.

Important Note: Boiling salt water does not purify it. You are simply concentrating the salt. To get pure water, you need to use distillation or another method to separate the salt from the water.