Balancing Liquid on a Coin: How Intermolecular Forces Work

Let knowledge of chemistry flow like water. Future scientists conduct two different experiments to investigate the properties of water. They learn about surface tension and cohesion as they see how many drops of water they can place on a penny. They also see how long it takes for streaks of water and isopropanol to evaporate.

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Instructional Ideas
  • Have the class create a graphic organizer of the properties of water
Classroom Considerations
  • Scholars should be familiar with molecular structures, chemical bonding, and polarity
  • An understanding of the properties of water is necessary
Pros
  • Includes definitions for vocabulary terms
  • Provides student worksheets and separate answer keys
Cons
  • None
NGSS