Defining surface tension as the invisible force that holds a liquid surface together.
Formalizing the term σ and its standard unit, Newtons per meter.
Observing how surface tension supports objects like a razor blade on water.
Exploring the roles of molecular properties and contact surfaces in tension.
Analyzing the inverse relationship between temperature and surface tension.
A final review of the core concepts: force, temperature trends, and units.
Concluding our exploration of fluid boundaries.