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Surface tension

Science A15: Clinging Water (Surface Tension)

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Product Description

Video and lesson investigations on the topic of surface tension. Key concepts include:

  • Water behaves as if it has a ‘skin’ around it.
  • Water clings to itself and to some objects and surfaces.
  • This ‘skin-like’ quality in the water’s surface is called ‘surface-tension’.
  • Surface tension operates in the surface of water.
  • It holds the surface together.
  • Water has a clinging effect both to itself and to some surfaces.
  • Because of the clinging effect, objects can be used to make water run in a particular direction.
  • Window ledges and other parts of buildings are often designed to make use of water’s surface tension, for drainage.