书籍详情
格式
电子书
页数
24
语言
英语
已发布
Jan 30, 2010
出版商
PowerKids Press
ISBN-10
1448802784
ISBN-13
9781448802784
描述
Science has some interesting mysteries. Children are curious about these mysteries, including what electricity is and how it works. This colorful book shows curious minds why circuit breakers trip, and explains why batteries go flat. Engaging photographs, both in color and black-and-white, and fun activities will make this book a favorite.
类型
儿童