Is it easier to lift a bag full of toys with an inclined plane or a pulley? Readers will see how a group of kids compares two simple machines and decides which one does a better job at lifting the bag. This book supports engineering design standards for primary grades in the Next Generation Science Standards.
€46.07
购买此电子书可免费获赠一本！
语言 英语 ● 格式 PDF ● ISBN 9781467782999 ● 出版者 Lerner Publishing Group ● 发布时间 2015 ● 下载 3 时 ● 货币 EUR ● ID 5034069 ● 复制保护 Adobe DRM
需要具备DRM功能的电子书阅读器
来自同一作者的更多电子书 / 编辑
12,749 此类电子书
