Experimenters Lyla and Sandy visit Nina in her workshop and discover why an underwater house would need to be watertight. Next, they visit an aquarium to find out why the walls of the house would need to be really strong. Finally, they do an experiment that explains how air could get from above the ground into an underwater house.

Originally released by BBC, 2015. Streaming video file encoded with permission for digital streaming by Infobase on January 17, 2017.

Meet the Neurons (0:56); --Could We Live in an Underwater House? (1:48); -- Senses Experiment (3:20); -- Water Bucket Experiment (3:24); -- Underwater House Ventilation (2:01); -- Summary: Could We Live in an Underwater House? (0:48); -- Credits: Living Underwater—Nina & the Neurons: Get Building (1:58); .