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In this activity/demo, learners discover how liquid nitrogen cools a creamy mixture at such a rapid rate that it precipitates super fine grained (nano) ice cream.

Learners experiment with a commercially available liquid-crystal coaster. They warm the material with their hands for varying lengths of time and observe the changing colors that result.

In this activity, learners investigate the basic crystal structures that metal atoms form.

This is written as a display, but can easily be adapted to a hands-on activity. Learners observe and shake containers of shiny liquids.