Screws
by Chris Oxlade
ISBN-10
043117900X
ISBN-13
9780431179001
List Price
$8.55
Book Specs
Binding
Trade PaperPublisher
HEINEMANN LIBRARY (PPublished on
Sep 30, 2004Edition
1st Edition
Dimensions
-x-x- Inches
Weight
- Pounds
About the Book
Many simple machines are taken for granted. How would we manage without wheels, pulleys, ramps, wedges or screws? These are all types of machine. They make it easier to do something. This series explores a range of similar devices at a level suitable for children working at Key Stage One.