Discuss why sound travels the slowest in gases and fastest in solids.

Explanation

### Step-by-Step Solution

1. **Understanding the Mediums**:
- Sound travels through different mediums: solids, liquids, and gases. The arrangement of molecules in these mediums affects how sound travels.

2. **Molecular Arrangement**:
- In solids, molecules are closely packed together. This means that when one molecule vibrates, it can quickly transfer that vibration to its neighboring molecules.
- In liquids, the molecules are less tightly packed than in solids, allowing for some space between them. This means that the vibration takes slightly longer to pass through because the molecules have to move a short distance to reach each other.
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