SciStarter will be at the Bay Area Science Festival Discovery Day promoting local citizen science projects you can get involved in! AT&T Park becomes a science wonderland when the Bay Area Science Festival concludes again with this FREE science extravaganza. The entire ballpark is packed to the rafters with science content: on the field, at every entry/exit, and every level of the ballpark. With more than 150 hands-on exhibits, get ready to unleash your inner scientist.