"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!
- A nanometer is a billionth of a meter.
- Nanometer-sized things are very small, and often behave differently than larger things do.
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