Beakman Challenge: Blow up a balloon inside of a two liter bottle. It's not possible because of the air already in the bottle. Through this challenge, Beakman demonstrates that air molecules take up space.
Beakman smashes a tomato with a mallet. Then puts another tomato in liquid nitrogen to show it was frozen and hits with a mallet. He then takes a blown up balloon and puts it in a bowl. He pours liquid nitrogen over it and shows the balloon shrinking. He explains this happens because everything is made of molecules. Then he uses a cartoon schematic to explain further. He also shows that when the balloon gets warmer, the air starts to expand and fills back up the balloon.
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.