This lab, presented by the National Nanotechnology Infrastructure Network, will help students begin to understand nanotechnology, specifically behaviors of materials at the nanoscale. Students will "explore two factors affecting the thin film deposition, film cracking and the formation of 'coffee rings.'" A 'Teacher's Preparatory Guide' is included, featuring needed materials, detailed procedural instructions, and additional resources, as well as a copy of the 'Student Worksheet' with answers. The 'Student Worksheet', without answers, is available as well.