TY  - BOOK
AU  - Silverman,Buffy
TI  - Simple machines: forces in action 
T2  - Do it yourself
SN  - 9781432923105 (lib. bdg.)
AV  - TJ147 .S55 2009
U1  - 621.8 SIL 22
PY  - 2009///]
CY  - Chicago
PB  - Heinemann Library
KW  - Simple machines
KW  - Juvenile literature
N1  - Includes bibliographical references (page 46) and index; Booklist, June 2009; 6.1; 3-6; IG870L; Lexile; S; Fountas
N2  - An exploration of simple machines that discusses inclined planes, wedges, screws, levers, pulleys, and wheels and axles, and includes instructions for related experiments and activities
ER  -