Materials List: Investigating Contact Angle

Each group needs:

To share with the entire class:

  • 2-4 types of water-repellent products with which to pre-treat glass slides for each team, such as Rain-X® Glass Treatment ($9), Rain-X® Anti-Fog™ ($8), Rain-X® 2-in-1 Glass Cleaner and Rain Repellent ($7), and G-Glass® Totally Green Hydrophobic Rain Repellent ($7)
  • marker or wax pencil to label glass slides
  • (optional) paper towels, sponge, mop, in case of spills