Isbn: 9787110090749 - 快乐做实验—物质的变化 (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback. Pub Date: 2015-7-1 Pages: 32 Publisher: Popular Science Press Do you know why the air can flow it? Do you know how to conduct pH test it? Do you know how to do color separation? You know combustion and respiration have anything to do? Material change a book to guide young readers through a series of interesting hands-on experiments to help children understand some basic scientific concepts to children spread scientific knowledge. The book text is clear. concise. ex.…