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Powering a Raft with Surface Tension: Weekly Science Activity

Explore surface tension with a small raft and soap science experiment  / Hand-on STEM experiment

In this week's spotlight: a physics family science experiment that investigates the dynamics of surface tension. Surface tension may keep your soda from spilling over the cup when you fill it a bit too full, but can surface tension also be used to propel something? In this science activity, students build a small, lightweight raft and experiment to see how surface tension—and some dish soap—can help move it across the surface of water.


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