Which of the following are physical changes and which are chemical changes ?
A glass bottle breaking

Explanation

To determine whether the breaking of a glass bottle is a physical or chemical change, we can follow these steps:

### Step 1: Understand the Definitions
- **Physical Change**: A change that is temporary and reversible. It involves a change in physical properties (like shape, size, or state) but does not alter the chemical composition of the substance.
- **Chemical Change**: A change that is permanent and irreversible. It involves the formation of new substances with different chemical compositions.

### Step 2: Analyze the Process of Breaking a Glass Bottle
- When a glass bottle breaks, it shatters into smaller pieces.
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