Tags: surfaces

Teaching Materials (1-10 of 10)

  1. To See or Not to See? Hydrophobic and Hydrophilic Surfaces

    Teaching Materials | 03 Dec 2020 | Contributor(s):: Jenny Willis, NNCI Nano

    This activity can be completed as a separate one or in conjunction with the lesson Superhydrophobicexpialidocious:  Learning about hydrophobic surfaces found at: https://www.nnci.net/node/5895. The activity is a visual demonstration of the difference between hydrophobic and hydrophilic...

  2. Superhidrofobicidad: Un balance Entre Fuerzas (Superhydrophobicity: A Balance Between Forces)

    Teaching Materials | 25 Apr 2020 | Contributor(s):: Nano-Link Center for Nanotechnology Education, Thomas Deits, Kristi Jean, Deb Newberry (editor), Rodfal A. Rodríguez (editor), María T. Rivera (editor)

    Este módulo demuestra y provee a los estudiantes un entendimiento de las fuerzas presentes en las interacciones hidrofóbicas e hidrofílicas. El balance entre las fuerzas cohesivas y adhesivas tiene como resultado una gota de agua casi esférica sobre una superficie,...

  3. El Método Científico (Scientific Method)

    Teaching Materials | 24 Apr 2020 | Contributor(s):: Nano-Link Center for Nanotechnology Education, Thomas Deits, Deb Newberry (editor), Rodfal A. Rodríguez (editor), María T. Rivera (editor)

    Utilizando el pez de celofán, los estudiantes aprenden y ponen en práctica el método científico. Observando, proponiendo y experimentando, los estudiantes ponen a prueba varias hipótesis del por qué el pez se dobla hacia arriba, se enrolla o no hace...

  4. Scientific Method

    Teaching Materials | 16 Apr 2020 | Contributor(s):: Nano-Link Center for Nanotechnology Education, Thomas Deits, Deb Newberry (editor)

    In this module, students will use cellophane “fortune telling” fish to walk through the scientific method. The students learn and practice the scientific method by proposing, testing and observing what happens with their "fish". Students will test various...

  5. Superhydrophobicity: A Balance Between Forces

    Teaching Materials | 16 Apr 2020 | Contributor(s):: Nano-Link Center for Nanotechnology Education, Thomas Deits, Kristi Jean, Deb Newberry

    This module demonstrates and gives students an understanding of the forces behind hydrophobic and hydrophilic interactions. The balance between cohesive and adhesive forces results in an almost spherical drop of water standing on a surface, such as a lotus leaf. This effect is called...

  6. NNCI Outreach Demonstration Guide

    Teaching Materials | 10 Feb 2020 | Contributor(s):: Nancy Healy, NNCI Nano

    This compendium of demonstrations includes 17 activities that can be used to demonstrate topics to students and the general public.  They are useful for science festivals, family science nights, and science cafes.  ...

  7. Exploring the Properties of Magic Sand

    Teaching Materials | 13 Jan 2020 | Contributor(s):: Amy Brunner, Nancy Healy, NNCI Nano

    This lesson uses a hydrophobic material called Magic Sand to: 1. Explore the properties of molecular bonding; 2. Introduce students to the engineering of hydrophobic surfaces; and 3. Demonstrate the concepts of hydrophobic and hydrophilic behavior. It is suitable for high school students in...

  8. Crystal-free Zone in a Glass-Ceramic Dish

    Teaching Materials | 28 May 2019 | Contributor(s):: Adam Powell

    Estimate the thickness of the crystal-free surface layer in a glass-ceramic dish by relating a heat equation solution to the T-T-T diagram.

  9. Wet Etching in Nanofabrication

    Teaching Materials | 11 Jan 2017 | Contributor(s):: Manuel Casillas, NNCI Nano

    This lab will help students understand how chemical reactions are used to create the specific shapes on surfaces of crystalline materials, which make up functional components within electronics. The fabrication of electronic devices is now reaching into the nanoscale with the capability of more...

  10. How Dry am I? Exploring Biomimicry and Nanotechnology

    Teaching Materials | 01 Dec 2016 | Contributor(s):: Elizabeth Davenport, Nancy Healy, NNCI Nano

    Through a series of activities, students will explore superhydrophobic properties of materials. This inquiry based lesson leads them through activities that has them compare and contrast physical properties of superhydrophobic coated materials with uncoated materials. In the process they will...