"100000 Whys" is an English popular science book specially designed for children. The cover uses a deep sapphire background color, matched with bronzing artistic fonts, and blended with rockets, dinosaurs, space planets and lively cartoon characters, which is full of childlike interest. The book explains scientific knowledge in the form of interesting questions and answers, guides children to establish scientific thinking, broadens their knowledge, and gives consideration to English enlightenment and popular science education during English reading. It is a high-quality reading material for children after class.