How Toys Work

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 wheels and axles, and uses simple language and labeled photographs to explain the scientific principles behind their use.

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 levers and uses simple language and labeled photographs to explain the scientific principles behind their use.

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 screws, nuts, and bolts, and uses simple language and labeled photographs to explain the scientific principles behind their use.

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 pulleys and uses simple language and labeled photographs to explain the scientific principles behind their use.

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 ramps and wedges, and uses simple language and labeled photographs to explain the scientific principles behind their use.