Union High School
Friday, April 29, 2005
Presented by the Center for Nanoscale Systems
Institute for Physics Teachers (CIPT) Cornell University, NY
and Whittier Union High School, CA
Hands-on Activity: The Cloud Chamber
Hands-on Activity: Molecular Imaging
Two and one-half contact hours will be awarded for participation.
- "The Cloud
Chamber" - Learn about the origin of cosmic rays and how to observe
these sub-atomic particles in your own classroom. A teacher's guide
providing valuable background information is accompanied by a student
handout containing detailed procedure steps to build your own cloud chamber.
- "Molecular Imaging" - Topographic imaging at the molecular level involves an indirect mapping of the surface of a material with a probe that follows the shape of the surface. In this activity, each team of students will use a simulated topographic scanner with a platform mounted laser probe to attempt to discern the structure of an unknown block of Legos built by another team. At the conclusion of this activity, students will be asked to apply the knowledge gained to develop an understanding of the atomic force microscope.