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.
Discover the critters and creepy-crawlers that inhabit Laumeier Sculpture Park at night!
Learn about monarch caterpillars as they prepare to transform into beautiful butterflies during this parent-child workshop.
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.
Kids can learn all about their favorite prehistoric creatures at Digging for Dinosaurs, a free workshop for preschoolers age 3-5.
Presented by Mad Science of St. Louis, in this workshop, get an up-close look at a dinosaur tooth and participate in a mini dinosaur dig. Registration is required.
Digging for Dinosaurs will be held:
Sept. 6 at 10 a.m. at the St. Louis County Library, Grand Glaize Branch.
More information and registration: slcl.org
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.
Aquarium visitors will be immersed in a world of shark-centered adventures and have opportunities to get up close to the sharks during Shark Week at the St. Louis Aquarium.
The Preschool Science Series is an open exploration learning lab for young scientists, ages 18 months to 5 years and their families. Activities are designed around research that shows children learn best through play, inquiry and shared experiences with their parents and caregivers.
See the Purina Incredible Dog Team perform extraordinary feats of athleticism and skill right here in St. Louis at Union Station this summer! Free performances are happening Thursdays through Sundays at 11 a.m. and 1 p.m. at Union Station's Performance Plaza in front of the St. Louis Wheel.
Celebrate Summerween at The Magic House! Beat the heat and get a sneak peek at the fun of fall. Come dressed up in your "funnest" beach attire or Halloween costume – whichever season suits you – and trick or treat throughout the Magic House.