A brief description of what constitutes and astronomical observatory with a few examples in the real world that you have probably heard of.

A brief description of the philosophical concept known as Occam's Razor, which asserts that “the simplest explanation of a particular natural phenomenon is usually the correct one.” 

A brief description of why the Webb Telescope is optimized to observe infrared light. Hint: it has to do with the four main science areas that it will be studying: “Other Worlds,” “Star Lifecycle,” “Galaxies Over Time,” and “Early Universe.”