The physical world  [computer file] / 
Nelson Multimedia. 
 - Surrey :  Nelson Multimedia,  1994 
 - 1 computer laser optical disc (CD-ROM) :  sd., col. ;  12 cm. +  1 diskette (Multimedia scrapbook, 1 user's guide, 1 tearcher's guide 
<br/><br/><br/>System requirements : 386 or 486 IBM PC ; 4 MB RAM ; SVGA graphics (256 colours) ; MS-DOS 5.0 or above ; Windows 3.1 ; CD-ROM drive (double speed) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics.<br/>Physical geography--Study and teaching.