Coffee Break with Nanoscience: Film Formation and "Coffee Rings"

This lab, presented by the National Nanotechnology Coordinated Infrastructure, 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 is available as well.