Middle Schoolers

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.