Educational Videos <br/><br/>
Simple machines / 
produced by Educational Videos. 
 - El Dorado Hills, CA :  Educational Videos,  1998. 
<br/><br/> 1 videocassette (VHS) (15 min.) 
<br/><br/> Children learn about the concepts of simple machines when they try to move parts for a structure they are building with as little force and time as possible. 
<br/><br/><label>ISBN: </label>1-58541-049-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Simple machines.