How do you distinguish between a magnet and an iron piece if they look identical?

Explanation

To distinguish between a magnet and an iron piece that look identical, you can follow these steps:

### Step-by-Step Solution:

1. **Gather Materials**: You need a known magnet (bar magnet) and the two identical pieces (one magnet and one iron piece) that you want to differentiate.

2. **Identify the Poles of the Magnet**: Determine which end of your bar magnet is the north pole and which is the south pole. You can usually do this by using a compass; the end that points towards the north is the north pole.

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