Name two physical changes that occur on heating a body.

Explanation

To answer the question, "Name two physical changes that occur on heating a body," we can follow these steps:

### Step 1: Understanding Physical Changes
A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. When a body is heated, it can undergo various physical changes.

### Step 2: Identifying the Changes
1. **Change of State**: When a solid is heated, it can change to a liquid. For example, heating an iron rod will cause it to melt and transition from a solid state to a liquid state.

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