Each book in this series focuses on a type of simple mechanism and examines how it is used to make different toys work. This book examines springs and uses simple language and labeled photographs to explain the scientific principles behind their use.

 

This book is part of a book series called Acorn-How Toys Work .

This book is aimed at children in primary school.

There are 24 pages in this book. This book was published 2013 by Capstone Global Library Ltd .