Getting your Trinity Audio player ready...

RESERVE — STEM St. John will present a STEM Saturday event on circuits and electricity from 9 a.m. to 12:30 p.m. May 28 at REGALA Gymnasium in Reserve.

This free event invites children in grades K-12 to build and test their own stop lights. Registration is open through May 25 at stemnola.com.

Sponsors are St. John United Way, Marathon, Entergy, St. John the Baptist Parish and the LA Nonprofit/ Small Business Assistance Program.