Challenge Kagaku-gumi 2nd Grade "A book that expands intellectual curiosity, wanting to know more!" Kagaku-gumi, Shinken Zemi's optional course 2nd Grade, 12 books Reference price (1,090 yen per book) With many photos and illustrations, this fun booklet satisfies curiosity in a wide range of fields such as nature, science, and society. It broadens children's interests and also expands parent-child conversations. Some books show signs of use, while others are almost unread and in good condition. There are no writings, but please consider this used item, which has been stored at home. A set of 12 learning texts for 2nd graders, themed on science and nature.