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Surface tension is a force powerful enough to prevent water from spilling out of an open jar when it is turned upside-down! In the Surface Tension Jar: Kinetic-Molecular Theory in Action—ChemTopic™ Lab Activity, demonstrate how a fine mesh screen hidden inside the lid of the jar provides hundreds of tiny surface tension “membranes” that, with air pressure, will support the weight of the water. Available as part of the Solids and Liquids—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.