책 세부 정보
형식
킨들
페이지
24
언어
영어
출판됨
Jan 1, 2014
출판사
The Child's World
ISBN-10
163143134X
ISBN-13
9781631431340
설명
Readers learn how this simple machine makes it easier to move things from one place to another. They also learn a wheel works with an axle. By the end of the book, readers know the difference between complex and simple machines and how wheels are used in everyday life to make work easier.