2. earth science: the earth is our home. Understanding the structure, landform and climate of the earth can increase children's knowledge. For example, Encyclopedia of Earth Science and Adventures of the Earth.
3. Encyclopedia of Animals and Plants: This kind of books can help children understand the kinds of animals and plants, living habits, ecological environment and other aspects of knowledge. For example, encyclopedia of animals and plants, encyclopedia of animal world, etc.
4. Encyclopedia of Historical Geography: Through these books, children can learn about the history, culture and geographical environment around the world. Such as world historical geography, China historical geography, etc.
5. Encyclopedia of Science Fiction and Fantasy: This kind of books can stimulate children's imagination and creativity and let them know the wonderful things in the world of science fiction and fantasy. For example, science fiction world encyclopedia, fantasy world encyclopedia.
6. Art Encyclopedia: This kind of books can help children understand various art forms and artists' works and cultivate their artistic appreciation ability. For example, Encyclopedia of World Art and Biography of Artists.
7. Encyclopedia of social phenomena: This kind of books can help children understand various social phenomena and problems and cultivate their sense of social responsibility and civic awareness. Such as Encyclopedia of Social Phenomena and Introduction to Sociology.
In short, choosing popular science books suitable for children's age and interests can help children increase their knowledge and broaden their horizons. At the same time, parents can accompany their children to read, guide them to ask questions and think, and cultivate their reading interest and learning ability.