Fun Science Projects & Experiments - Surface Tension
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A collection of science projects and experiments for various grades and topics.
Science Projects or Science Experiments
Grade 1 to Grade 3
Floating needle
This demonstration is about surface tension of water. Usually metal needles sink into water because they have higher density than that of water. However, when it is put horizontally, the pressure exerted by the needle is weaker than the surface tension, so it can float. It can be proved by adding surfactant to water to make the needle sink.
A fun experiment that will have friends wondering how you did this. The experiment uses surface tension to suspend a paperclip on the surface of water.
showing surface tension of water using screen.
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