Free STEM Activities in St. Louis: Weekend Programs for Families (2026)
STEM education doesn't have to come with a big price tag. St. Louis has a surprisingly rich ecosystem of free and low-cost STEM activities for kids — from museum programs and library workshops to community events and online academies offering free trials. Here's a roundup of what's available in 2026, plus how to make the most of every opportunity.
Free STEM Resources in the St. Louis Area
St. Louis families have access to a number of free STEM touchpoints throughout the year. While these aren't substitutes for structured curriculum, they're excellent ways to spark interest and supplement ongoing learning.
St. Louis Science Center
Free general admission with paid special exhibits. Regular STEM programming for kids of all ages, including engineering challenges and coding demonstrations.
St. Louis Public Library — STEM Programs
Many branches offer free coding workshops, robotics clubs, and maker activities throughout the year. Check your local branch calendar for current offerings.
Missouri Botanical Garden — Science Programs
Environmental science and biology-focused activities for kids, many included with general admission or offered free on select days.
Code.org Free Courses
Not St. Louis-specific, but widely used by local schools and families. Completely free browser-based coding courses for ages 4 and up.
Ellie's Free STEM Saturday
A monthly free event hosted by Ellie's FutureMinds Academy. Kids explore one of 6 STEM tracks in a live, guided session — no enrollment required.
Making the Most of Free STEM Activities
Free activities are a great starting point, but they work best when they're connected to something ongoing. Here's how to turn a one-off event into a lasting interest:
- After a museum visit, look up YouTube videos or free tutorials on the topic that excited your child most
- Ask your child what they want to build or create — then find a program that teaches them how
- Use free trials strategically: sign up for a structured program while interest is high, right after a spark event
- Connect with other STEM-interested families in St. Louis through local Facebook groups and school networks
- Look for programs that offer a progression — not just a one-time experience
Free STEM Saturday at Ellie's FutureMinds Academy
One of the most popular free STEM events in the St. Louis community is our monthly Free STEM Saturday. Each session focuses on one of our six tracks — Coding, AI, Cybersecurity, Robotics, Game Development, or Web Development — and is open to kids of all ages and experience levels.
There's no enrollment required and no cost. Parents can attend alongside their children. It's the perfect way to try a STEM track before committing to a full program.
Join us for a free hands-on STEM session. Choose your track, meet Ellie the AI coach, and see what learning at FutureMinds Academy looks like — completely free, no strings attached.
Enroll for FreeWhen Free Isn't Enough: Structured STEM Education
Free activities are wonderful for sparking curiosity, but they rarely build deep skills on their own. A child who attends a one-hour robotics workshop won't leave knowing how to build a robot. That takes a structured curriculum, consistent practice, and a feedback loop.
That's where a program like Ellie's FutureMinds Academy comes in. For $10/month after the free trial, your child gets access to a full K-through-graduate-level curriculum across six STEM tracks, an AI coach available around the clock, and a community of learners across St. Louis and beyond.
And right now, the first month is completely free — no credit card required. It's the lowest-risk way to find out whether structured STEM education is the right fit for your family.
Start with a Free Month
No cost, no commitment. Your child gets full access to all six STEM tracks for an entire month — on us.