Children's questions and answers Curiosities and wonders 53 Juvenile literature 38 Science 31 Miscellanea 14 Animals 11 Children's encyclopaedias and dictionaries 6 Plants 6 Technology 6 Earth 5 Encyclopedias and dictionaries 5 History 5 Space 5 Geography 4 Human body 4 Readers (Primary) 4 Body, Human 3 Encyclopaedias and dictionaries 3 Handbooks, vade-mecums, etc 3 Nature 3 People 3 Transportation 3 World history 3 Almanacs, Children's 2 Civilization 2 Comic book, strips, etc 2 Comic books, strips, etc 2 Cosmology 2 Dinosaurs 2 Earth sciences 2