Explain why properties of nanoscale objects differ from those of the same materials at the bulk scale.

• Lesson 3 NanoSense Curriculum Series:
  Size Matters: Introduction to Nanotechnology
  
  Description with your perspective:
  The Unique Properties Lab is appropriate for most students. I would use the Size-Dependent Properties reading for more advanced students.
  
  Time Frame: 1-2 days.

• Preparation and Properties of an Aqueous Ferrofluid
  
  Description with your perspective:
  Advance chemistry and physics classes should be able to do this if time permits. You can stop and start the procedure from day to day. The procedure produces ripples rather than intense spikes. The addition of nanoparticles helps the spiking become more dramatic.

  Chemistry students would use this to discuss electron interactions, transition metals. Physics students could create this as an extension of their magnetism unit. With enough nanoparticles field lines are quite evident in the presence of strong magnets.
  
  Time Frame: Preparation of ferrofluid will require parts of 2-3 days.

• Chapter 1: Magnetism
  
  Description with your perspective:
  Use in a physical science class or physics class to initiate discussion on magnetism.
  The basic magnet activities can be used as demos or as student activities.
  I would use the Curie Temperature activity as a Discrepant Event or as an assessment towards the end of a magnetism unit in physics.

  Activities include:

  Experimenting with magnetorheological fluids.
  Suspending a magnet in mid-air.
  Levitating pyrolytic graphite.
  A Gauss Rifle: A Magnetic Linear Accelerator.
  Building a Curie-effect heat engine.
  The Ring Launcher and the Zip Rod.

  Time Frame: Basic magnetism in 1-2 days. Extensions could fill out the rest of the week.

• Exploring the Material World:
  Is Carbon Hard or Soft?
  
  Description with your perspective:
  Website provides reading, activity, and visuals that guide students through the structural differences in graphite and diamond.
  
  Time Frame: 1 day
  
  
  
• Kevlar – The Wonder Material
  
  Description with your perspective:
  Activity provides clues to the strength of Kevlar. Students use the scientific method to create ideas about why it is so strong.
  
  Time Frame: 1 day