PUBLICATION W336C

Sticky Molecules STEM Lesson

Publish Date: April 06 2018 |  Language: English

DOI: doi.org/10.7290/UTIAPub/W336C

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Summary

This activity has students use droppers and water on wax paper to observe cohesion and surface tension by making drops, moving them, trying to split them, and watching drops rejoin. An optional step adds dish soap to show how changing conditions affect the “stickiness,” and a simple coloring demonstration shows that water is always in motion.