<p>SAN FRANCISCO -- Sidney Chen and his daughter, Elizabeth, were watching a robot designed by kids from local high schools throw Frisbees through a wooden goal. A little bit earlier, Cathy Markhefka's children got to play with Linkbot, a robot that you can drive by just tilting a remote control forward and back or side to side. And Robert Liebsch's son, Thomas, was being chased by a small robot programmed to follow the green ball he was holding.</p><p>"It's pretty awesome," Liebsch said.</p><p>He and the other parents and their kids were just some of the many Bay Area residents who got a close-up look at locally designed cutting-edge robots on Saturday at AT&T Park. They were among the 30,000 attendees of Discovery Days, the closing event of the third annual Bay Area Science Festival.</p><p>The robots certainly weren't the only attraction at Saturday's event, which featured more than 150 exhibitors. Inside the ballpark, kids could do everything from touch a dissected squid to build a microscope out of Legos to view a 3D printer in action.</p><p><a href="http://www.mercurynews.com/science/ci_24442185/robot-zoo-bring-together-kids-bots">Keep reading...</a></p>