Didactalia: material educativo > 12-14 ans

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Hipervinculo Física

Soapy Surface Tension

Surface tension causes the molecules at the surface of a liquid (such as water) to cling together. This project examines the effects of soap on the surface tension of water.It is an educational conten ...

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Hipervinculo Física

Simple science experiments: gravity water drop

Gravity is a force that all objects exert, but you can really only feel it from the really big things. The Earth pulls us down to its center, the Moon pulls our water from the oceans to make the tides ...