Bill Nye explains why it gets colder as one travels up through the atmosphere. He uses miniature replicas of a city and a mountain to support his explanation. Bill also briefly touches upon the lapse rate.
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.