Come discover more about earth's extremes – past and present – at SciFest: Extreme Earth Expo at the Saint Louis Science Center. From extreme weather and natural phenomena to extreme life forms, you'll meet experts on tornadoes, volcanoes, earthquakes, and dinosaurs! See what scientists studying the earth are learning that can help us prepare for extreme events in the future.
May 18, 9:30 a.m. to 4:30 p.m. Free.
At the Saint Louis Science Center.
More information: slsc.org
Apotheosis Comics has teamed up with the St. Louis Chess Club to offer free chess lessons for all ages every Tuesday evening. All levels of experience are welcome.