Here's why:

* Particle Density: Gases have very low particle density compared to liquids and solids. This means the particles are far apart and collide less frequently.

* Less Frequent Collisions: Fewer collisions mean less energy transfer. Sound travels as vibrations that are passed from one particle to another. In gases, these vibrations are passed along much less efficiently due to the sparse particle density.

* Lower Speed of Sound: The speed of sound is much lower in gases than in liquids and solids. This is another indication of the inefficiency of sound transmission through gases.

Think of it this way: Imagine trying to pass a message through a crowded room versus an empty field. In the crowded room, the message can easily be passed from person to person. In the empty field, it's much harder to find someone to pass the message to.

Therefore, gases are poor conductors of sound, not good conductors.