March 31, 2015 7:25 pm Teenager's Life-Bettering Inventions Rake In Science Fair Awards Maya Varma has been cleaning up at science fairs since the 6th grade. Every time she wins, we all do. US & World Videos 2:24 In the news: Freeway shootings, ‘California Forever' plan moves forward, good Samaritans 3:53 Tensions, protests grow over Israel-Hamas War 1:48 Bay Area food banks deal with critical shortage 2:19 Suspect arrested for operating brothel in San Jose 2:25 San Francisco mayoral candidate proposes university campus to revitalize downtown