Birthday Parties

Two children play will a ball on the Imagination Station playset.

Celebrate your child’s birthday with a private party and hands-on science activities

Book your next birthday party at the Science Centre! This package includes an exclusive two-hour experience with hands-on science activities facilitated by enthusiastic party hosts, plus a pizza lunch. And the fun isn’t over when the party ends—you and your guests are invited to spend the rest of the day at the Science Centre.

Choose from one of our party themes and leave the rest of the work to us!

Book Now

Party Themes

Imagination Playground: Ages 4–7

Experiment, play and create using the Imagination PlaygroundTM block system. Our party staff will lead and guide your group as you explore and build your very own engineering marvel!

Magic: Ages 5–8

Discover the chemistry and physics of magic tricks. Play with light and colour to create a rainbow, learn how to write secret messages with invisible ink and more!

Rigamajig: Ages 5–8

Create, explore and experiment with the Rigamajig large-scale building and engineering kit. Use your imagination to build a structure big enough for you and your friends to play in, and then get your creation moving with wheels, pulleys and more!

Space: Ages 5–8

Explore the solar system and the wonder of space travel. Become an astronaut trainee and investigate the laws of gravity by designing, building and testing a planetary lander.

Party Package

All birthday parties include:

  • Private party room
  • Dedicated party staff
  • Hands-on interactive science demonstrations and activities
  • Discounted parking for you and your guests
  • Free admission to the Science Centre for you and your guests
  • 20% off OMNIMAX® Theatre tickets for you and your guests
  • Pizza lunch and juice for children
  • Coffee and tea for adults (large pizza available for an additional $21.25)
  • Disposable partyware (napkins, plates and utensils)
  • Special T-shirt for the birthday child

What you can bring:

  • Birthday cake, candles and loot bags

A birthday party is offered as a complete package only. Program substitutions or customizations are not available. 

Dates and Times:

  • Birthday parties are offered on Saturdays and Sundays from 10 a.m. – 12 p.m.

Attendee Numbers:

  • 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 (and up to 9 additional adults for Imagination PlaygroundTM parties)


  • $550/party (HST included) Non-Members
  • $500/party (HST included) Ontario Science Centre Members*

We cannot accept additional coupons, membership benefits, discounts, passes or vouchers in place of payment for the party or extra children or adults attending the party.

*Members get a discount on birthdays and camps. To qualify for the member discount, the person booking must be the legal guardian of the child and a named cardholder on a current membership at the Planetary level or higher that includes children. Learn how to become a member.


Book online or by phone at the number below. All birthday parties should be booked at least two weeks in advance. Birthday party spaces are limited and will be booked on a first-come, first-served basis.

Full payment is required at time of booking. We accept AMEX, Visa or MasterCard.

Book Now

Cancellation Policy

Cancellations received 14 days or more before the birthday party date are fully refundable less a $70 administration fee. We cannot refund cancellations made fewer than 14 days before your party date.

If your child is sick on the day of the party, please contact us. We will work with you to reschedule the party at no additional cost. If there are no alternate party times available, we will grant a refund if you provide a written request and a doctor's note within one week of the missed party.

Programs, prices and policies are subject to change without notice.

Additional Information

More information regarding themes, pricing, agendas and more is available in our birthday party information package.

We’re happy to answer any of your birthday party-related questions. Contact us at Recreational Programs | 416-696-3256 or toll-free: 1-888-696-1110 (ask for the Recreational Programs Office).