The Science Knowledge Encyclopedia for Children is a collection of 6 books from Wonder House Books, covering subjects such as English, Astrophysics, Physics, and more. This box set includes books on Chemistry, Astronomy, and Physics, making it an all-in-one resource for young readers. With a total of 192 pages, this encyclopedia series is written in English and suitable for children at various levels, from beginner to advanced. The 1st edition books offer a comprehensive look at science topics, making them a valuable addition to any young reader’s library.