Kirk gets to start us out this week and he's all ears. Ears are weird but all those shapes actually mean something. Learn how the shape of an animal's ears can tell us about their habitat and behavior.

Rachel is up next and she goes on on the ice to tackle the question of why does ice on lakes crack in the winter? It turns out it relates to some of the very strange properties of frozen water.

Victoria  introduces us to The Hot Chocolate Effect. Did you know that hot water sounds different than cold water when it is poured, stirred or moved through pipes? It all comes down to bubbles.

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