When most people reflect that “It’s a small world,” they aren’t referring to nanobiotechnology, but they could be. The Health Museum’s “It’s a Nano World” exhibit is here to help us understand why. “Nano World” literally puts a giant magnifying glass on the bazillions of tiny particles in the microscopic nano-world that exists in and around us– from the cells in the human body to the pollen that makes us sneezy in springtime. Visitors can get up close to these tiny particles through several interactive exhibits and a film, Powers of Ten. Little kids will enjoy measuring their height in nanometers (it’s a whole lot more digits!). And bigger kids will find that through a pinball game featuring pollen and dust, summer allergies can be fun. The Giant Blood Drop awaits you daily through September 10.

May 27-Sept. 10