Wetting and Contact Angle

Explore terminology related to water droplets. The sixth installment of a nine-part series teaches young scientists about wetting and contact angles between water droplets and surfaces. It also distinguishes between hydrophobic and hydrophilic surfaces.

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Instructional Ideas
  • Have learners create a graphic organizer comparing total wetting, partial wetting, and no wetting
Classroom Considerations
  • Be sure to use the associated activity (seventh installment of the series) with this lesson
  • You need some method for showing a picture to the class (projection or printouts)
Pros
  • Teacher resource includes diagrams and photos that promote understanding
Cons
  • Does not provide any handouts or worksheets
NGSS