PIRA: 6A44.20


 Lab Equipment  Directions
  1.  Spectra Physics 155 laser
  2. large nalgene tank
  3. box of polarizers
  4. polarizer set (large)
  5. creamer
  1.  Fill tank with water 2″ from top (or send extra capped gallon container with water). Put a pinch of creamer in tank and mix.
  2. Darken room. Angle laser upward pointing at underside of water surface to show reflection.
  3. Angle laser downward pointing at upper surface of water to show refraction.
  4. Hold a polarizer between the laser and the tank of water as you rotate the polarizer.