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How do cohesion and adhesion work together? The third installment of a nine-part series teaches young scientists the difference between adhesion and cohesion. They also learn how cohesion and adhesion work together to cause capillary action.
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Concepts
Instructional Ideas
- Have learners brainstorm different examples of capillary action in a journal entry
Classroom Considerations
- Be sure to use the two activities associated with this lesson (fourth and fifth installments of the series)
- Though not indicated in the materials section, a glass of water, food coloring, and paper towels are necessary for the demonstration
- Participants need to have experience with the cosine function in order to understand the given equations
Pros
- Includes easily decipherable diagrams
Cons
- No handouts or worksheets for the lesson portion are included