Birthday Party Rates

With two packages to choose from, you can be sure to fulfill all your child's birthday wishes.

Package 1 Includes:

  • 2-hour use of an undecorated birthday party room--feel free to bring your own decorations (no balloons or confetti please).
  • Welcome signage.
  • General admission exhibit entry to Pacific Science Center.
  • Party invitations for you to send to your guests.

Cost:

  • $175.00 for nonmembers, includes the first 15 people.
  • $155.00 for Pacific Science Center members, includes the first 20 people.

Package 2 includes everything in package 1 PLUS:

  • All party decorations.
  • 40-minute Super Science Show based on the party theme your child chooses.
  • 20-minute liquid nitrogen ice cream demonstration.
  • Make and Take Activity for the attendees.
  • Cake--you choose the flavor and we will have it ready for you with the plates, napkins, utensils and candles.
  • Choose your theme: Dinosaurs, Astronomy, Weird Science or Butterflies.

Cost:

  • $305.00 for nonmembers, includes the first 15 people
  • $285.00 for Pacific Science Center members, includes the first 20 people.

General Information/FAQs

How do I book a birthday party at Pacific Science Center?

To book your party today, call (206) 443-3611.

Where do the birthday parties take place at Pacific Science Center?

The birthday parties take place in the Seattle Rotary Discovery Labs, maps and directions will be provided upon booking.

What are the age recommendations for the themed parties?

Each of the themed parties has been structured to include activities appropriate for ages 3 and up. Un-themed package 1 parties are appropriate for all ages.

What cakes are available?

Cakes are decorated to the party theme you select and are available in white, chocolate or marble cake with white or chocolate frosting.

What times are birthday parties available?

Pacific Science Center offers three time slots for the weekend birthday parties: 10:00 A.M.-noon, 12:30 P.M.-2:30 P.M. and 3:00 P.M.-5:00 P.M., subject to availability.

How far in advance do I need to book a party?

All parties are booked on a first-come, first-served basis. We require a minimum of two weeks notice. If you call with less then two weeks of a desired party date we will do our best to accommodate your needs, but no guarantees. For more details, call (206)443-2899.

When is payment due?

The full price of the party is due upon booking. Additional guests and food order charges will be applied the week following the party.

What is the cancellation policy?

Packages are non-refundable. However, you may change your party date with no penalty up to five business days prior to the originally booked date. If you reschedule your party within five business days a $100.00 re-booking fee will apply.

What age counts toward the total number of guests?

Adults and children ages 3 and older count towards your total number of guests. Additional guests over your group total are $7 per person, children under 3 are free.

What is the maximum number of guests in a single room?

The capacity of the birthday party room is 35 adults and children. If you believe you will exceed this, please inquire about a double party.

When is attendance count due?

Our birthday party staff will conduct a head count at a point during your party, so no guest list is necessary.

Can we bring balloons?

Due to the sensitive nature of our fire alarm system, helium balloons are not permitted in the buildings. We also do not allow confetti or pinatas.

Are outside vendors allowed, such as magicians?

All outside vendors must be pre-approved by our birthday coordinator, a minimum of one week prior to your party. Please plan to have vendors provide insurance and references.

Is there storage available?

There is no storage available in the birthday party area before or after your party. There are lockers available for rent in Buildings 1 and 3 of Pacific Science Center.

What is the structure of a deluxe package 2 themed party?

A 40-minute Super Science Show will begin 10 minutes after the party start time. Immediately following is the 20-minute Liquid Nitrogen Ice Cream demonstration. The remainder of the party will be unsupervised by our staff so you may continue the party and serve cake and ice cream at your convenience.

What staff does Pacific Science Center provide?

For the Standard Package 1 there will be a birthday party assistant in the lobby to greet you and direct you to the room. For the Deluxe Package 2, the birthday party assistant will greet you and direct you to your room and an education presenter will conduct the 40-minute Super Science Show and 20-minute Liquid Nitrogen Ice Cream demonstration.

As a Pacific Science Center member, do I get a discount if my guests are also members?

Your membership benefits and discounts have already been applied to your party package. If any of your guests are also Pacific Science Center members their member benefits and discounts may not be applied to exceed the allotted number of guests included in the package price.

What birthday add-ons are available?

We offer lunch options and IMAX ticket discounts for our birthday party customers. - Cake and Liquid Nitrogen Ice Cream demonstration can be added on to Package 1 for an additional fee.

Wild B'Earthday Celebrations at Mercer Slough

Birthday party packages are also available at the Mercer Slough Environmental Education Center in Bellevue. Learn More