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Listed under:  Science  >  Forces and energy  >  Molecular forces  >  Cohesion (Forces)  >  Surface tension
Video

Elliot and the Surfing Scientist: The surface tension of water

  • TLF-IDM015783

Imagine you could walk on water! Some insects can do just that. Watch as the Surfing Scientist uses a paperclip and a glass of water to demonstrate how this is possible.

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Video

Elliot and the Surfing Scientist: Pepper scatter experiment

  • TLF-IDM015791

Watch what happens in this pepper scatter experiment by Surfing Scientist, Ruben Meerman. Ruben demonstrates an important property of water, surface tension, by dipping a toothpick into water sprinkled with pepper. Find out what happens when detergent is added.

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Image

Water molecule

  • TLF-IDR6843

This is a colour image of a model of a molecule of water, H₂O. In this model, atoms are represented by coloured spheres held together by grey rods, representing covalent bonds. The water molecule contains one oxygen atom (the red sphere) and two hydrogen atoms (the grey-white spheres).

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