Toronto is starting to reopen its doors, and we can’t wait to welcome you back. But it’s going to take us a little longer due to our interactive, high-touch exhibits. We’re working on a comprehensive plan to make sure it’s safe when we open our doors again–so thank you for your patience. As soon as we have more details, we’ll share.

Birthday Parties

Special Status Update: We have cancelled all Birthday Parties up to May 15. We will be providing full refunds and waiving any administrative fees.

Birthday Parties

Celebrate your child’s birthday with amazing hands-on science activities full of concocting, examining, and experimenting! Choose the theme of the birthday party, then relax; leave the entertaining and activities to our Party Staff. They will deliver a two-hour party for up to 20 children in your private party room. The fun is not over when the party is; you and your guests are invited to spend the rest of the day at the Ontario Science Centre!

Parties for 4-7 year olds

Illustration of large blue foam building blocks


Experiment, play and create with Imagination Playground blocks to design and build the playscape of your dreams. Our party staff will challenge you and your friends to work together to create a masterpiece, whether it’s a garden, a moon base, or an amusement park. It’s all up to you!

Imagination Playground birthday party activities

Parties for 5-9 year olds

Illustration of an atom in green on a white background


Get ready for a journey through the digestive system! Investigate animal scat to solve the Poo-Patrator Mystery and mix up some fake dung to take home. Do your family and friends have the stomach for this poo party?

Illustration of a test tube in red on a white background


Experience chemistry and explore the physical and chemical changes of matter with cool chemistry demos. Mix your own concoctions of “slime” (a polymer) and “ooblick” (a non-Newtonian fluid).

Illustration of a puff of smoke in purple


Experiment with optics and chemistry as you unlock the secrets behind popular magic tricks. Defy the laws of gravity and make an orb levitate. Create a balancing stick to amaze your friends and family!

Illustration of a rocket in blue


Investigate Newton’s Third Law of Motion to determine how rockets launch into space and enjoy two interactive “launch” demos – a film canister rocket and a balloon rocket. Build and test a planetary lander with the goal of successfully landing it without damaging its cargo – an egg!

Parties for 10-12 year olds

Illustration of a cog in grey


Get geared up for fun! Use engineering principles, recycled materials and your imagination to find the solution to a real life problem with your friends in the "lab," then build and test your very own personalized robot to take home.

Two photos of children having fun at a Science Centre birthday party.

General Information

Dates: Saturdays and Sundays

    • Up to 11 children and 11 adults (a minimum of one adult must attend the party)
    • Optional: add up to 9 extra children at $25/child
    • Optional: add up to 3 extra adults at $25/adult
    • 10 a.m. to 12 p.m. – Parties for 4 to 7 year olds
    • 10 a.m. to 12 p.m. – Parties for 5 to 9 year olds
    • 10 a.m. to 12:30 p.m. – Parties for 10 to 12 year olds
Package includes:
    • Private party room
    • Dedicated Ontario Science Centre Party Staff to facilitate your party
    • Hands-on interactive science activities
    • Discounted parking for you and your guests
    • Free admission to the Ontario Science Centre for you and your guests
    • Pizza lunch with a juice beverage for children
    • Coffee and tea for adults
    • Disposable partyware (napkins, plates and utensils)
    • Special T-shirt for the Birthday Child
    • Birthday Party Invitation - Download here

A Birthday Party is offered as a complete package only. Program substitutions or customizations cannot be accommodated.

What you can bring:
Birthday cake, candles and loot bags

Birthday Party Sample Schedule:
For 4 to 7 year olds
For 5 to 9 year olds
For 10 to 12 year olds

More Birthday Party Information:
Frequently Asked Questions


$525 /party (HST included) Non-Members
$475 /party (HST included) Ontario Science Centre Members*

Party Price includes:
    • up to 11 children (includes Birthday Child) 
    • up to 11 adults (includes Birthday Child's Parent(s))
    • $25/child    Add up to 9 extra children for a maximum of 20 per party
    • $25/adult   Add up to 3 extra adults for a maximum of 14 per party
    • $40            Add-on pizza for adults (2 large 12 slice pizza)

No additional coupons, membership cards/benefits, discounts, passes or vouchers can be applied in lieu of payment for the party or for extra children or adults attending the party.

*To Qualify for Ontario Science Centre Member’s Discount:

    • The person booking the Birthday Party must hold a current Planetary, Stellar, Galactic or Cosmic level Ontario Science Centre Membership that includes children.
    • The membership must be valid on the date the Ontario Science Centre receives Birthday Party booking.

To become a member, renew your membership or inquire about the many benefits of becoming an Ontario Science Centre Member, call the membership office at 416-696-3142.

Learn how to become a Member!


Book online (Or check availability)
By phone: 416-696-3256

Full payment is required at time of booking.We accept AMEX, Visa or MasterCard.
Birthday Party bookings are limited and are booked on a first-come, first-served basis.
All Birthday Parties should be booked at least 2 weeks in advance.

Download Birthday Party Information Package & Invitation

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Cancellation / refund policies

Cancellations received 14 days or more prior to the Birthday Party date are fully refundable less a $60 administration fee. No refunds will be given for cancellations made less than 14 days prior to your Birthday Party date.

If your child is sick and you have to cancel the party, you may reschedule it on an alternate date at no additional cost based on availability. A refund due to medical reasons may be considered if a written request is received within a week of the missed Birthday Party date and is accompanied by a doctor’s note.

Programs, prices and policies are subject to change without notice





Toll Free: 1-888-696-1110 (ask for Recreational Programs Office)
Office Hours 8 a.m. to 4 p.m. Monday to Friday

Recreational Programs
Ontario Science Centre
770 Don Mills Road
Toronto, ON  M3C 1T3

Click here to book Birthday Parties nowMEMBER Discounts Apply Too! Click here to learn more about Membership.

Birthday Party Customer Comments

"That was the funnest party! It was the best party I have ever been to!"
"WOW, I don't need to take care of anything?"

"Wonderful!!!!! The staff made our Space party stellar!!! Thanks to all! Everyone agreed that it was great! Bravo!"

"The Party Pros were terrific. We really appreciate the fun, sociable and upbeat attitude of the staff. Thanks!"

"It was the best party I arranged for my son. The kids had a great time. The knowledge, patience and maturity of the staff was superior to my experiences at other birthday venues."

"It was most memorable happy day for my birthday girl. Friends told her at school it was so cool. Thank you very much." 

 Birthday Invitation

Birthday Party Invitation