TY  - BOOK
AU  - Oxlade, Chris.
TI  - Screws
SN  - 9780749675684
U1  - 621.882 22
PY  - 2007///
CY  - London
PB  - Franklin Watts
KW  - Screws
KW  - Juvenile literature
N1  - "An Appleseed Editions book."; Includes index; What is a simple machine? -- Pushes and pulls -- How a screw works -- Lifting with screws -- Gripping with screws -- Squeezing with screws -- Joining with screws -- Moving with screws -- Screws in machines -- Screws in the past -- Fun with screws: a model screw jack -- Fun with screws: a screw conveyor -- Spot the screws -- Words to remember
N2  - There are screws all around us - from the cap on a drinks bottle to the taps in our kitchens. But what are screws, and how do they work? This book answers these questions and many more. With clear text and colourful illustrations, it explains what screws do and why they are so useful to us in our everyday lives
ER  -