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Posted by on Saturday, July 7, 2012 at 5:51pm.

why does a wadded up foil sink

  • science - , Saturday, July 7, 2012 at 6:31pm

  • science - , Sunday, July 8, 2012 at 5:42am

    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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