Explorers Hannah, Oliver and Reiann visit Nina in her workshop and discover that light from the sun only shines on one side of the moon.

Originally released by BBC, 2013. Streaming video file encoded with permission for digital streaming by Infobase on November 17, 2016.

Meet the Neurons (0:55); --Why Does the Moon Change Shape? (2:13); -- Senses Experiment (4:37); -- What is a Telescope? (1:37); -- Moon Phases Game (2:38); -- Summary: Why Does the Moon Change Shape? (0:33); -- Credits: Moon Shape—Nina & the Neurons: Earth Explorers (1:32); .