"Exploring Structures - Buckyballs" is a hands-on activity in which visitors fold up a precut shape to make a model of a buckyball. They learn that buckyballs are tiny, soccerball-shaped molecules made of carbon.
"Exploring Size - Tiny Ruler" is a hands-on activity investigating just how small a billionth of a meter is. Visitors attempt to cut a paper ruler down to a nanometer-sized sliver. They learn that nano is too small to see, and certainly too small to cut with a pair of scissors!