书籍详情
格式
平装书
页数
24
语言
英语
已发布
Jan 1, 2005
出版商
Lerner Pub Group
ISBN-10
0822526166
ISBN-13
9780822526162
描述
Earth is made of different things—gases, rocks, soil, and water. A gas is something that can change shape and size. Gases helps beginning readers understand this basic element by looking at examples such as air and steam; the book also discusses how gases help protect the Earth.