Kings, Queens and Castles is an innovative exhibition that brings the chess board to life and provides an engaging introduction to individual chess pieces and game strategy.
Bring your family, a blanket, and some snacks to the Ballwin Golf Course for a free showing of Star Wars: Episode V: The Empire Strikes Back.
Watch Luke Skywalker as he trains with Yoda all while avoiding being captured by Darth Vader. The movie is free.
At Ballwin Golf Course. 8:30 p.m.
More information: ballwin.mo.us
Dig into the current research in seismology, geology and paleontology, see a 66 million year old dinosaur footprint, learn about Missouri's Supervolcano and lots more during Rock, Fossil, Quake: A Celebration of Earth Science, a free event at the Saint Louis Science Center.
Kids in fifth grade and up, along with their parents, can spend an afternoon learning about the heart and cardiovascular system in this hands-on experience with anatomy and physiology experts from Adventures in Medicine and Science from Washington University.
Catch 'em all and try to be the best there ever was during Pokemon Go Night at the Saint Louis Science Center. There will be amazing science demonstrations, Pokemon-themed food and drink specials and more.
The Science Center will be open late 'til 8 with lure modules set at their Pokestops all night. Show your team pride by battling for control of the gym located at the James S. McDonnell Planetarium. The Planetarium will be lighted in the team color of whoever controls it at the end of the night! Don't miss the demos from local augmented reality and virtual reality developers.
Kids ages 6 to 12 are invited to participate in a free soccer clinic with instructors and players from the Maryville men's soccer team.
Participants will learn various technical skills and small-sided games, and will get the chance to interact with the college players and coaches and getting autographs following the clinic.
5 to 6 p.m. at Maryville University. The clinic is free, but registration is required.
More information and to register: maryvillesoccercamps.com
St. Louis Public School and the Urban League of Metro St. Louis present the annual Back to School and Community Enpowerment Festival, free for all city residents.
This year's festival features a main stage on the arena floor where student performances and academic showcases will take place. Free school supplies will be given away while supplies last and a free lunch will also be served.
Longmeadow Rescue Ranch is hosting its annual Spring Fling for families on April 20. The fun includes an up-close look at the Longmeadow Rescue Ranch horses, wagon rides through the 165-acre state-of-the-art horse farm and animal rehabilitation facility, and lots more.
Kids can work on existing gym skills, learn new skills or just play around during Open Gym at Miss Kelly's Gym. Reservations are not necessary.
Young artists and their families are invited to complete a fun craft activity in the galleries at the St. Louis Artists Guild. This program is designed for Pre-K to elementary-age children and their families.
Preschoolers can learn, play, explore and grow at the Saint Louis Art Museum's Wee Weekend program for its youngest visitors. Join in on the adventure as your little one discovers new ways of interacting with art and each other.
See the Zoo's California sea lions perform acrobatic and athletic feats, including Olympic-style dives on a high-diving platform, flipper walks, frisbee tosses and plenty of surprises. While on stage with the sea lions, the Zoo's trainers explain sea lion behavior and positive-reinforcement training, in addition to the need for conserving the sea lion's ocean habitat.