Answer:
Compass is a device that was developed based on the property of magnet.
Construction A compass is usually a small box with a glass cover on it. A magnetised needle is pivoted inside the box which can rotate freely. The compass also has a dial with direction marked on it.
Working The compass is kept at the place, where we wish to know the direction. Its needle indicates the North-South direction, when it comes to the rest. The compass is then rotated until the North and South marked on the dial are at the two ends of the needle.
To identify the North pole of the magnetic needle, it is generally painted in a different colours.
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