This activity is great for a 50 minute period within an astronomy unit. As students learn about star and element formation it can be difficult to provide a tangible simulation of what is occurring. This choose-Your-Own-Adventure activity places students in the "shoes" of a hydrogen atom floating in a Stellar Nebula and through a series of choices, leads them through the star formation process resulting in becoming part of a heavy element, white dwarf, black hole, stellar nebula, etc. Students ca