is there a pass that can be purchased?

They have memberships you can purchase

Yes, you can buy a yearly pass or just for the day. If you travel, the yearly pass comes in handy as it will get you into lots of other museums and zoos. It's a great place to go when the weather is too hot or cold. Plus they are doing much better at keeping everything fresh and up to date.

Yearly memberships are available that get you into Science City and give opportunities for additional discounts and events. A daily pass can also be purchased but if you plan on going more than once, yearly is the way to go and is very affordable.