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.
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