The purpose of this lesson is to familiarize students with size, scale, and measurement by exploring size and scale through a variety of activities. In part 2, students explore size effects in chemical reactions.
This lab explores the properties of water flow. This inquiry-based lab consists of 2 sections: the Guided Lab Activity and the Going Further (research) portion. The guided lab activity, performed on the first day, is designed to help students observe and understand the way fluids interact with a stationary phase for example, chromatography paper. As the students do their guided lab activity, they will be responsible for generating a minimum of three questions related to the lab activity that would require further research.
The objective of this lab is to campare the diffraction behavior of light waves between a CD and DVD. CDs and DVDs contain regularly spaced micrometer sized features which can act like a diffraction grating. Using commercial electronic storage devices like CDs and DVDs as gratings rather than commercially produced plan transmission gratings enhances student interest in the activity and also opens up a discussion on the trend of improving storage capacity with the invention of Blu-ray and layered DVDs.
This unit provides activities for students to learn about the metric system of measurement. A connection to the nanoscale is made by having students read the How Stuff Works article –“How Nanotechnology Works” and answer questions about the article. Further connections of size and the nanoscale can be found in the Resources at the end of the unit.
This a cross-disciplinary chemistry and social and ethical issues lesson that is tied to a new and promising inexpensive form of diagnostics called paper diagnostics. The issue discussed focuses on HIV AIDS.
The purpose of this investigation is twofold: 1) To use the skills of scientific inquiry to uncover the most likely perpetrator of a crime, and 2) To employ a paper diagnostics tool as a forensics device for chemically determining "whodunit".
This lesson will review the metric system and relate the size and scale of objects to various metric units, including the very small nano-scale.
Using Media to Explore Social and Ethical Issues in Nanoscience and Nanotechnologies (High School curriculum lesson)
This lesson introduces students to social and ethical issues related to nanotechnology. The lesson demonstrates possible social issues through case studeies using popular films, books, and news stories. The lesson is intented to stimulate discussion about social and ethical issues related to nanotechnology as well as, in a broader context, the interaction of science and technology with society.
This activity—in which students test a local water supply—is designed to be used as an extension to classroom activities related to treating foul water for consumption. This activity should be done after students have been introduced to the concept of nanoscale and before Lesson 2 - Water Filtration and Nanoparticles lab. Students should have a good grasp of how to convert the size of objects to the nanometer scale.
Purpose of the lesson is to: • Explore the properties of molecular bonding • Introduce students to the engineering of hydrophobic surface. • Demonstrate the concepts of hydrophobic and hydrophilic behavior.