Nina receives help from Belle, her hearing neuron, when she investigates why the ice is swept in curling.

Streaming video file encoded with permission for digital streaming by Infobase on October 01, 2015.

Meet the Neurons --(0:55) -- Why Do They Sweep the Ice While Curling? -- (2:31) -- Senses Experiment -- (3:03) -- Melting Ice -- (2:53) -- Slippery Materials -- (2:26) -- Summary: Why Do They Sweep the Ice While Curling? -- (0:42) -- Credits: Curling-Nina and the Neurons: Get Sporty -- (1:40).