For Families

Birthday Parties for Ages 3-5

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.

Download Printable Invitations

Dinosaur Adventure

Examine these fascinating creatures, dig for fossils, and more in this engaging birthday party!
  • Age Level: Ages 3-5

Rainbow Birthday Bash

Bring out the artist in your child! Explore the rainbow and experiment with the science of color using hands-on activities.
  • Age Level: Ages 3-5

Space Explorers

Children who are fascinated with space, stars, astronauts, and rockets will love this interactive birthday party!
  • Age Level: Ages 3-5

Squishy Science

What kid doesn't love a good mess? Dig into the world of slime and other super ooey-gooey goo. The best part is you won't have to clean it up!
  • Age Level: Ages 3-5