STEAM Classes
Hands-on weekday adventures in science, technology, engineering, art, and math — made for little explorers.
- Flexible hourly or weekly enrollment
- Creative engineering challenges
- Explore, test, and try again
✦ Rancho Cordova • Ages 4–8
Less scrolling.More making.
Little hands. Big ideas.
Give their curiosity something real to work with. At CosmoSprouts, children build, test, and create with their own hands — practicing problem-solving, finding confidence, and discovering the joy of figuring things out for themselves.
🔬 Scientist-designed🧩 Hands-on learning🌼 Small class sizes
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🧪 EXPERIMENT✳🛠️ BUILD✳🎨 CREATE✳🧠 SOLVE✳🌱 GROW
Find your perfect fit
More ways to grow curious
Whether your child joins for a class, an afternoon, or a school break, there's always something new to explore.
After-School Program
A caring, creative place to unwind, explore big questions, and turn the afternoon into something wonderful.
- Pickup from Sunrise Elementary
- Homework and math support
- Hands-on enrichment activities
Off-Track & Breaks
School's out? Imagination is in. Full-day programs filled with discoveries, challenges, and new creations.
- Full-day off-track options
- School-break and holiday activities
- A fresh project to look forward to
Made by curious hands
What we have built.
A look at our projects in action. Press play to see ideas take shape, one experiment at a time.
Rubber Power Boat
Rubber Sling and Motor Powered Cars
Solar Power Plane
Automatic Domino Dispenser
Making a Moving Robot
Air-Powered Ball Experiment
Inside the imagination lab
Small projects. Big discoveries.
Every project starts with a question. Then the fun begins! Here are a few examples of what our young makers might explore.
Build a Catapult
How far will your invention launch?
Earth, Moon & Eclipses
Explore light, shadows, and how eclipses happen.
Balloon-Powered Cars
What makes a car zoom without a motor?
Paddle Boat Challenge
Design, float, and improve your boat.
Math & Logic Games
Puzzles that make thinking an adventure.
Build a Stronger Bridge
Can you build a bridge that holds more? Test, strengthen, and try again.
Make a Marble Maze
Design a path, tilt your maze, and guide the marble to the finish.
How Stars & Planets Form
Use cotton and clay to model a gas-and-dust cloud, a young star, and growing planets.
Project a Starry Sky
Try at home: with a grown-up, make holes in a constellation card and shine a flashlight through.
Make Moon Craters
Drop balls into a tray of flour. How do size and drop height change the craters?
Build a Sundial
Use a stick and chalk to track its shadow. How does the shadow change through the day?
Split Sunlight into Colors
Use a prism to reveal the rainbow hidden in sunlight. How many colors can you find?
✦ And so much more! New challenges keep curiosity growing. ✦
"What if we tried…?" ✨
Our learning philosophy
Not just following steps.
Thinking like a scientist.
At CosmoSprouts, we believe every child is a natural inventor. Instead of simply copying an example, children get to ask questions, make choices, discover what works, and proudly share what they made.
1 Imagine something amazing
2 Design and build an idea
3 Test it and discover what happens
4 Improve it — and try again!
Scientist-designed
Purposeful STEAM experiences that nurture curiosity and critical thinking.
Small groups
More room for ideas, exploration, and individual encouragement.
Creativity first
Art, science, and engineering meet in playful problem-solving.
Licensed child care
California child care facility • License #343627028
Good questions!
Curious parents, meet curious answers.
Still have a question? We'd love to hear from you.
✉️ Ask us anythingWhat ages is CosmoSprouts for?
Our programs are designed for children ages 4–8, including Pre-K, TK, Kindergarten, first grade, and second grade.
Can we try a class before enrolling?
Yes! Trial classes are available. Use our interest form to tell us about your child and the program you're interested in, and we'll follow up with details.
Do we need to commit to a full week?
We offer flexible enrollment options, including hourly or weekly STEAM classes. Share your preferred days and schedule in the interest form so we can discuss availability.
Is school pickup available?
Pickup from Sunrise Elementary School is offered as part of our after-school program. Please contact us for pickup arrangements and enrollment details.
Where are you located?
We are in the Sunridge Park neighborhood of Rancho Cordova, California. We share full location and visit information directly with interested families.
What should my child bring?
We'll share project-specific instructions when a class is confirmed. Curiosity and a willingness to experiment are always welcome!
The adventure begins here
Ready to grow a big idea?
Tell us a little about your child, what they love, and the schedule that works for your family. We'll be in touch about a trial class or enrollment options.
