Get inspired about science and technology at this free event at the Alameda County Fairgrounds. Over 80 exhibitors with hands-on activities for ages 5 and up. Themed areas dedicated to environmental sciences, and health care and life sciences, plus the ever-popular robotics demonstrations and more. Prior attendees have come to this event to get ideas for science fair projects and at-home supplementation of science education. The 7th Annual Tri-Valley Innovation Fair is presented by Quest Science Center, and runs from 10 am to 5 pm on Saturday, April 12. Event information is at Quest-Science.org. Pre-registration is encouraged.