Children can explore activities & materials that introduce them to the basic principles of science, technology, engineering, art, & math. Designed for children 5+. Free with Museum admission. Daily admission is required, discounts may apply. Sundays & Mondays: 10 a.m.–3 p.m. Children’s Museum of Sonoma County. 1835 W. Steele Ln., Santa Rosa. cmosc.org/calendar.