Save $20 on a COSI Membership
COSI Membership offers an entire year of COSI general admission, reciprocal admission to over 360 other science centers, plus other exclusive benefits. Save $20 when you purchase or renew a COSI Membership at the COSI Box Office or online.
To receive discount, enter code KITS20 at checkout. Cannot be combined with other offers. Not valid on Family Access Memberships. Other restrictions may apply. Offer expires 6.30.2022.

Save $5 on a COSI Connects Kit
Save $5 on your next online order of a COSI Connects Kit! Have COSI’s hands-on science delivered right to your door with a COSI Connects Kit! Choose from multiple science themes, including Water, Nature, Space, and more.
To receive discount, enter code KIT370 at checkout. Limit 5 kits per transaction. Cannot be combined with other offers. Other restrictions may apply. Offer expires 6.30.2022.