Hank answers one of the world's most asked questions, What is Energy?. He also goes in to depth about the different types of energy and how they differ.
Smithers shows a clip about nuclear energy to the Springfield Elementary School during their plant field trip. The clip explains what nuclear energy is and describes the misconceptions associated with it.
How does nuclear energy work? Is radiation a risk? Find out the difference between nuclear fission and fusion, how uranium fuels the process, and the pros and cons of this alternative energy source.
Galileo explains to his student that, if two balls are dropped at the same height, they will both hit the ground at the same time, regardless of their weight.