How many pages of meteorological books are there for children on earth?

This book is an original picture book for children's meteorological science, which integrates cloud data, art and science, and introduces meteorological knowledge that is closely related to our lives and we feel every day. The book consists of six volumes: weather, strong winds, rain, thunder and lightning, haze identification, and experiencing cold and heat. "Weather Theory" summarizes the whole weather phenomenon. The following volumes focus on weather phenomena such as wind, rain, thunder and lightning, smog, extreme cold and extreme heat, and tell the advantages and disadvantages of related weather phenomena, the disasters they bring and the countermeasures, and think about how to develop and utilize their energy. This book contains more than 300 popular science knowledge points, more than 400 watercolors, 12 scientific experiments, and 6 meteorological paintings drawn by children. Page count: 388