Is there a pop rocks and coke challenge?

There is indeed a Pop Rocks and Coke Challenge, also known as the "Mentos Challenge" or "Diet Coke and Mentos Challenge." It involves dropping a few Mentos candies into a bottle of Coca-Cola or Diet Coke, causing a sudden and dramatic eruption of foam and liquid from the container. The challenge is popular as a science demonstration or simply as a fun activity to observe.