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why does a wadded up foil sink

  • science -

    http://www.newton.dep.anl.gov/askasci/gen06/gen06769.htm

  • science -

    Metal foils such as aluminum have a higher density than water. By "wadding it up" you prevent there being any empty volumes inside to give it buoyancy. The denser material (the foil) sinks to the bottom.

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