내일은 발명왕 22: 도전! 시간 여행

Tomorrow is the king of the invention 22Meeting of scientific principles and creativity! The Science of Nature In the process of finding a solution, you can learn science theories and terms in the science textbooks easily and funly. You can get confidence and sense of accomplishment! The concept of self-confident readers will help you grow into a child who is not afraid of challenging you The concept of a book is completed with an invention kit! We invented the kit to challenge the invention directly and understand the principles of