The Southeastern Mass. STEM Network will hold its third annual STEM Resource Fair on July 24 at Bridgewater State University (Rondileau Campus Center, 19 Park Avenue, Bridgewater).  Parents, educators, and representatives of business, government, and community organizations are invited.  The fair includes exhibits of STEM education resources as well as presentations by participants in the Envision the Future STEM program for middle-school girls.  (Three girls from Newton will be attend Envision the Future.)  Free online registration opens on July 1.