Vent

Real World Example

Imagine you're boiling a pot of soup on the stove, and as it heats up, bubbles begin to rise to the surface. Similarly, in the ocean, vents act like those bubbles, where water heated by magma below the ocean floor rises up through cracks. Just as the heat from the stove causes the soup to bubble and release steam, the magma beneath the Earth's crust heats the ocean water, causing it to rise and escape through openings in the ocean floor, much like the steam escaping the pot.