When the arrow appears in the bottom-right corner of the screen, click anywhere to advance. This explains how you would go about sorting a list of numbers in order from smallest to largest, using a sorting algorithm called bubble sort. The name comes from the fact that the biggest items float up to the end of the list, kind of like a bubble. There's also a variant of this algorithm that is bidirectional, called shaker sort. See inside for a prebuilt bubble sort algorithm. However, I would encourage you to see if you can program one on your own after watching this, first! ...Or maybe you're just here to see the bubbles graphic, which, by the way, you can feel free to use in your projects! Also, thanks so much for featuring this project, Scratch Team!