Hank provides background information on the biologist who contributed to evolutionary history: Charles Darwin. He also explains the four principles of Darwin's idea of natural selection, which are variation, heritability, struggle for existence, and survival and reproduction rates. Key Words: Genetic Drift, Fitness, Variations of Phenotype, Heritable, The Struggle for Existence, Survival and Reproduction Rates

Mr. Burns makes a political campaign to rally the support of his peers. While doing so, he introduces his three-eyed fish, Blinky, then summons an actor portraying Charles Darwin to explain the concept of evolution.

A short biography of Albert Einstein, German-born scientist who revolutionized the understanding of physics and the philosophy of science. This "Man of the Century" developed the theory of relativity and impacted the development of everything from lasers to cell phones.

Beakman acts as Einstein to explain the theory of relativity. He breaks down each component and explains what it is. He also explains relativity using an animated clip of cars on the highway.

Tom Green explains the covalent bonds between carbon and methane, and he represents them using a Lewis Dot Structure. Tom then explains how to read the structure. He also gives some background information on Gilbert Lewis, the creator of the Lewis Dot structure and one of the most influential chemists in history.