Science World Spring 2012 Promo : Page 1

WWW.SCHOLASTIC.COM/SCIENCEWORLD FEBRUARY 13, 2012 VOL. 68 NO. 9 ISSN 1041-1410 INSIDE: BIOLOGY Population at 7 Billion! PHYSICS Technology Mimics Nature A head louse and a nit, or egg NEW WEB SITE! /scienceworld SOME OF NATURE’S CREEPIEST CREATURES LIVE ON—AND IN—YOU! BUGS BODY BIOLOGY

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