It's amazing that one tiny acorn can grow into an enomous oak tree. Little ones, ages 3 to 6, will investigate the life of an oak tree and its importance in the forest then go on a hike to search for oak trees and acorns.
10 a.m. to 11:30 a.m. Free, but reservations are required.
At Powder Valley Conservation Nature Center in Kirkwood, near the intersection of I-44 and I-270. Call 314-301-1500 for reservations.
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
Enjoy live music, lots of kids' activities, food and drink vendors, raffles, a silent auction and lots more.
Celebrate Fall at this free community festival that features a little bit of everything for all ages. Enjoy hayrides, balloon animals, pumpkin races, a pet costume contest, live bluegrass music and a family movie under the stars.
Enjoy one of the fastest and craziest events on three wheels at Trike Riot, a benefit for the American Cancer Society.
The family friendly part of this event is from 11 a.m. to 5 p.m. with an assembly and trike ride. Bring your own trike or register with a new Razor DXT Drift Trike that you get to keep. Bike decorations, costumes and dress up is welcome. Helmets are required for kids 12 and under. Pricing begins at $20.
More information: chesterfield.mo.us
Celebrate the 50th Birthday of the Daniel Boone library with a special story time and live music from the 1920s.
At 10 a.m., kids ages 2 - 6 can enjoy stories, songs and rhymes to wish the library a happy 50th birthday during a special early literacy story time.
At 2 p.m., enjoy live music from the 1920s performed by the duo Harmony. For all ages.
Both event are free. At the Daniel Boone Branch of the St. Louis County Library.
More information: slcl.org
Come hand out with the fireflies and experience a natural light show at Firefly Night! Reservations are required.
Enjoy live music, performance art, local food. a climbing wall, and hands-on activities for the whole family, as well as artists, aerial performers, educational exhibitors, diverse cuisine featuring local, organic, vegetarian and vegan options and more. Please bring your own bag to collect vendor information.
Take your family to watch birds of prey fly right over your head, meet the wonderful bird ambassadors of the World Bird Sanctuary up close and much more.
Don't be late for this very important date! The Fancy Tea Party at the St. Louis Carousel and The Butterfly House will have you feeling fancy and acting silly while enjoying tasty treats, delightful drinks, and fun crafts with Wonderland's most curious guest. Visitors can go in search of the while rabbit as adventure takes you through the gardens of The Butterfly House.
Science Tots is designed for children ages 18 to 36 months. The class provides opportunities to support brain development and learning. Toddlers and their grown-ups will explore STEM topics through songs, stories, hands-on exploration and play.
Explore the Saint Louis Zoo in the evenings at the Chinese lantern festival Animals Aglow! Animals Aglow returns to illuminate the Saint Louis Zoo for the second year with dozens of new, towering lanterns and light displays.