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.
Mr. Seaver begins teaching the class a lesson on gravity out of the textbook. He is especially confused by the book's claim that a coin and a feather will fall at exactly the same speed. After Luke challenges him to prove it, he tests the claim.