This demonstration, presented by the National Nanotechnology Infrastructure Network, exposes students to the functionality of catalysts on a nanoscale. This lesson is "a great way to introduce or review reactants, catalysts, and adsorption, desorption, and diffusion. Use this demonstration after the Surface Area-to-Volume Ratio of Nanoparticles lab." A Teacher Preparation Guide, Student Guides, and Next Generation Manufacturing Standards for this lesson are included.