Investigating Contact Angle

Discover the properties of water-loving and water-hating surfaces. In the seventh installment of a nine-part series, scholars explore hydrophilic and hydrophobic surfaces by conducting an experiment. They observe surface coatings, investigate visibility, and observe anti-fogging properties.

1 Collection 6 Views 3 Downloads NGSS: Designed
Instructional Ideas
  • Have the class research different hydrophobic and hydrophilic surfaces and their commercial uses
Classroom Considerations
  • Experiment requires several repellents, which may not be readily available in your lab
  • Learners need knowledge of surface tension from previous lessons
  • Includes reproducible worksheets
  • Teacher resource lists some safety issues to share with lab participants
  • None