This is a cart demo about how nanoparticles behave differently, in part because they have a high surface area:volume ratio. Visitors learn that smaller particles have a much higher proportion of their atoms on the surface. Visitors unfold paper cubes, drop alka-seltzer in water, turn potatoes black with iodine, and see fireballs to understand how surface area changes as you get small.
- Nanotechnology is very small.
- Nanomaterials have different properties than other materials.
- One reason for these different properties is an increase in surface area.
- Nanometer-sized things are very small, and often behave differently than larger things do.
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