Surface Area - Cart demo

NISE Network product
Description: 

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.

Audience: 
Nano topics: 

Objectives

Big Idea: 
Nanoparticles have much more surface area than macro-particles, giving them different properties.
Learning Goals: 
  • Nanotechnology is very small.
  • Nanomaterials have different properties than other materials.
  • One reason for these different properties is an increase in surface area.
NISE Net Content Map: 
  • Nanometer-sized things are very small, and often behave differently than larger things do.

Credits

Funding: 
Developed for the NISE Network with funding from the National Science Foundation under Award Numbers 0532536 and 0940143. Any opinions, findings, and conclusions or recommendations expressed in this product are those of the authors and do not necessarily reflect the views of the Foundation.
Permissions: 

Creative Commons license image Creative Commons Attribution Non-Commercial Share Alike

Development Process: 

NISE Network products are developed through an iterative collaborative process that includes scientific review, peer review, and visitor evaluation in accordance with an inclusive audiences approach. Products are designed to be easily edited and adapted for different audiences under a Creative Commons Attribution Non-Commercial Share Alike license. To learn more, visit our Development Process page.