Deep in the halls of Black River Elementary, the Mystery of Locker 200 has been kept secret for years.  But all that is about to change as two students on Halloween Night discover that Locker 200 is more than just a locker…it’s a portal to another world!  Join us as we learn about the science of Dry Ice by telling the tale of the Mystery of Locker 200.  Using Dry Ice Experiments with water, soap, PVC, plastic, and more, discover why the Mystery of Locker 200 should have stayed hidden!