In April and May the Explorers built and launched their own rockets. While they did not quite reach orbital velocity, every new space program has to start small. Perhaps one day we will look back on this as the beginning of “one small step for an Explorer, one giant leap for studentkind.”
The Explorers finished off a year of experiments with the now-annual (by popular demand, with the emphasis on the word “demand”) pop bottle geysers activity.
This impressive, rather messy display is the result of a simple physical reaction that happens when two substances meet. In this case, the culprits are the small round candies known as Mentos and carbonated liquid—otherwise known as soda pop. The secret is a process called “nucleation.”