Season 4, Episode 7 Bang Goes the Theory

First Aired: July 23, 2013

Jem builds a singing road for a royal wedding; Liz uses DNA to track her family tree back to the earliest humans.

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  • Premiered: July 27, 2009
  • Rating: TV-PG
  • Premise: Science and technology are put to the test by examining everyday scientific principals that are instrumental in shaping the world. (more)

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