scent

"Exploring Measurement - Molecules" lets visitors use their sense of smell to explore the world on the nanoscale. They learn that we can smell some things that are too small to see, and that a nanometer is a billionth of a meter.

"Exploring Measurement - Solutions" is a hands on activity illustrating how small nano is. By sniffing a series of diluted scent solutions, visitors discover that nano-sized particles may be too small to see, but they're not too small to smell!