The last chance to take part in Summer STEM Nights is coming up Tuesday, July 29th. The event runs from 6 to 8 p.m. at the Runnels County Senior Citizens Building in Ballinger. Geared for 3rd through 6th graders, the session offers a fun, hands-on engineering challenge for just $10. Registration is capped at 20 students and is open to all youth, regardless of 4-H membership. Call Evan Cave at 325-977-1111 to register. The registration deadline for the July 29th event is July 22nd.