Pinch Test

This lesson, presented by the National Nanotechnology Infrastructure Network, covers the general concepts of size or SI prefixes. Students will study what equipment or tools a person would need to view objects of particular sizes. The less can be used in multiple ways including "to see how much students know before teaching; to introduce them to the topic; or to assess what they have learned after teaching about size and SI prefixes." A Teacher Preparation Guide and PowerPoint images are included.