Why Did the Titanic Sink So Quickly?

Imagine a toy boat with paper walls. If you poke one hole, it floats for a long time. But if the walls are connected loosely and water rushes in fast, the whole thing sinks like a rock. The Titanic was huge, but its back doors were not high enough.

The metal used to build the Titanic was strong, but it got very stiff when it was cold. When it hit the icy iceberg in April, the steel acted more like glass than iron. It shattered instead of bending. This created a long tear along the side.

Inside the ship, there were watertight compartments (rooms with strong walls). The plan was that if one room got wet, the others would stay dry. But the rooms were open at the top like a cupcake tin. As water filled the lower rooms, it spilled over into the next ones. By the time the front of the ship dipped enough, water poured over the edges and dragged the whole boat down.

The Titanic did not just sink; it broke apart. Because the back end was hanging high in the air for a while, the weight pulled until the middle snapped. This is why we see the bow (front) section deep underwater today.