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LEVERS HOW TOYS WORK by Sian Smith
$24.00 AUD
Category: Science and Nature | Series: How Toys Work Ser.
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 labelled photographs to explain the scientific principles behind their use.
PULLEYS HOW TOYS WORK by Sian Smith
$24.00 AUD
Category: Science and Nature | Series: How Toys Work Ser.
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.
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