This is a book that a child used. Recommended for children who are interested in science, or for families who want their children to become interested in science. If you introduce it by reading it aloud together, children around the upper elementary school grades were able to read it themselves. The content is easy to understand, in the format of a conversation between a teacher and a child. "Chemistry Do-Re-Mi-Fa 1 (Until You Understand Reaction Equations)" Masanobu Yoneyama Publisher: Reimei Shobo Release Date: July 25, 1997 (First Edition), December 20, 2005 (10th Printing) Language: Japanese Paperback: 206 pages ISBN-13: 978-4654080311 Price: ¥1800