Hank explains why solid water is less dense than liquid water even though solids are typically more dense than liquids. He also discusses how the high heat capacity of water helps support life on Earth. He uses the bodily process of sweating to exemplify water's unique properties.
The video answers questions about what would happen to bodily functions and systems if the body was in space. Sahana discusses the differences in air pressure in space versus on earth. She uses a vacuum to show what would happen to our organs without the necessary gas, temperature, and molecules.