Articles liés à What do Levers do? (Paperback)

What do Levers do? (Paperback) - Couverture souple

Glover, David

 
9780431062693: What do Levers do? (Paperback)

Synopsis

Looking at levers, this is one of of a series which aims to develop children's knowledge of the basic principles of design and technology. Each book introduces a particular principle and explores how it is used in different gadgets and machines.

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