Here's a breakdown:

* Sublimation: The transition of a substance directly from the solid to the gaseous state without passing through the liquid state.

Examples of Sublimation:

* Dry ice (solid carbon dioxide): When exposed to air, it sublimates into carbon dioxide gas.

* Naphthalene (mothballs): They slowly sublimate over time, releasing a vapor that repels moths.

* Iodine: Solid iodine sublimates into a purple vapor when heated.

Let me know if you have any other questions!