Pulleys (Simple Machines)

by Michael Dahl (Author)

• Used

  Paperback
  2002

  $12.71

  A series of books that introduces simple machines and how they work. Full-colour photographs illustrate how we use these machines in our everyday lives. Each spread comprises a descriptive photograph plus clear, easy-to-understand text to interest the young reader in basic physics. New words are set in bold and appear with short explanations in a comprehensive glossary. Each book contains a how to make activity page, a list of books for further reading and an index. PULLEYS explains how loads can be minimised by pulley systems, and shows, via photographs, how they work.

• Used

  Hardcover
  1998

  $6.71

  This is one in a series of four books that i ntroduces children to simple, commonly used machines. Each b ook has one full-page photograph per spread accompanied by t wo or three simple sentences giving facts about the featured machine. '