10am - 5pm
10am - 5pm
10am - 5pm
10am - 5pm
10am - 5pm
10am - 5pm
10am - 5pm

COSI is now open!

Have your child's birthday party at COSI! COSI birthdays are a mix of silly science and serious fun! Please submit your reservation at least three weeks in advance.


  • COSI general admission for up to 15 children (plus the birthday child) and 15 adults for a basic party or 25 children (plus birthday child) and 25 adults for a premium party
  • Exclusive use of private party room for two hours, including one hour of guided activities with a COSI team member
  • 10% off in the Science2Go! store for your guests
  • Liquid Nitrogen ice cream made at the party
  • Personalized birthday cake
*All parties must be reserved at least 3 weeks in advance

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Basic Party:
15 children (plus birthday child), 15 adults
COSI Members: $325.00
Nonmembers: $375.00


Premium Party:
25 children (plus birthday child), 25 adults
COSI Members: $525.00
Nonmembers: $575.00


Ages 3-5

Space Explorers
Children who are fascinated with space, stars, astronauts, and rockets will love this interactive birthday party!

Diggin' Dinos
Examine these fascinating creatures, dig for fossils, and more in this engaging birthday party!

Rainbow Birthday Bash
Bring out the artist in your child! Explore the rainbow and experiment with the science of color using hands-on activities.

Ages 6-11

Astronaut Adventure
Create your own rocket to guide you through a space adventure! Launch rockets, experience the vacuum of outer space, and don't forget the epic landing!

Dinosaur Adventure
Dig into this party to learn how dinosaurs might have lived and died. Hold and examine real dinosaur fossils and become a paleontologist looking for ancient remains.

Grab your magnifying glass and get ready to become a detective! Test your observation skills, gather fingerprints for evidence, and decipher a mystery.