STEM adventure. Kids-only, interactive science hour. $10–$12. Parking: $7. Two sessions: 11 a.m.–noon or 1–2 p.m. Environmental Discovery Center. 393 Violetti Rd., Santa Rosa. Register for 11 a.m.: tinyurl.com/mrpdd4p6. Register for 1 p.m.: tinyurl.com/46x6puu3.