(Leah Hogsten | The Salt Lake Tribune) l-r Northridge High School students Jade Safford and Autumn Colbert react as they play with 3D printed toys at ReliaBuild 3D's booth at SheTech Explorer Day for high school and middle school girls to learn and explore the world of science and math — including, coding, robotics, building circuits, diamond cutting, artificial intelligence and virtual reality at the Mountain America Expo Center in Sandy, Thursday, March 1, 2018.