Ice is not a gas. It's a solid form of water.

Here's the breakdown of the states of matter for water:

* Solid: Ice (H₂O)

* Liquid: Water (H₂O)

* Gas: Water vapor (H₂O)

Ice can sublimate, meaning it can directly transition from a solid to a gas without passing through a liquid state. This happens when the ice is exposed to low pressure and high temperature, like in a vacuum or on a very cold, dry day.

So, while ice itself is not a gas, it can turn into a gas (water vapor) through sublimation.