Catherall, Ed  <br/><br/>
Levers and ramps / 
Ed Catherall 
 - East Sussex :  Wayland Publishers Limited ,  1982 
 - 32 pages :  color illustrations ;  24 cm 
<br/><br/>R<br/> 
<br/><br/> Levers and ramps are so widely used that it is easy to take them for granted. Such everyday items as scissors, bottle-openers, wheelbarrows and seesaws are all ramps of all sizes and slopes. The experiments in this book will help to create an understanding of levers and ramps, how they work, and how we use them. 
<br/><br/> 700<br/>  Lexile estimate<br/>  R<br/>  Raz-Plus<br/> 
<br/><br/><label>ISBN: </label>0853409161 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Force  --Levers<br/>Motion --Pulleys
<br/><br/><label>LC Class. No.: </label>Q164 C 
<br/><br/><label>Dewey Class. No.: </label>531.8