What does the water in the pool do when you jump in it?

When you jump into a pool, your body displaces a volume of water equal to your own volume. This causes the water to move outward and upward, creating waves and ripples on the surface. As you enter, the water splashes and some may even spill over the pool's edges, depending on the height and force of your jump. The water then settles back into the pool, returning to a calm state.