1. After the winter melon matures, the surface is covered with white frost, which looks like frost in winter, so it is called winter melon.

2. Because it makes a thumping sound when knocked

3. It is named winter melon because when the melon is ripe, there is a layer of white powdery substance on the surface, which is like hoarfrost in winter. In addition, the flesh of the melon is also white, which is very pleasing to the eye during the hot summer and autumn, so it is named "winter melon". Winter melon is also called white melon and pillow melon