Dissolving salt into water is an example of a physical change specifically a dissolution.

Here's why:

* Physical change: The salt and water molecules remain the same, they just change their arrangement. No new substances are formed. You could, in theory, evaporate the water and get the salt back.

* Dissolution: This refers specifically to the process of a solid dissolving into a liquid.

Let me know if you'd like more details about physical and chemical changes!