The Big Dipper-这本书不错哟,强烈推荐!

The Big Dipper

作者 (Author) Branley, Franklyn M.
等级 (MML) MM LEVEL: 3.3
年级 (IL) Lower Grades (LG K-3)
字数 (Words) 631
类型 (Fiction) Non-Fiction
书号 (ISBN) 9780690140880
系列 (Series) Let's-Read-and-Find-Out Science: Stage 1;
This book explains basic facts about the Big Dipper, including which stars make up the constellation, how its position changes in the sky, and how it points to the North Star.