Judge why a steel block sinks but a steel ship floats. You can assume the density of steel is the same in each scenario.

A block made of steel sinks because steel block is more denser than water which states that its weigh is more than an equivalent volume of water.

So, the buoyancy is not enough to hold up the block floating in water. No matter the block is bigger or smaller it will always sink into water.

Whereas, the ships can float on water because of its shape. The shape of the ship does not makes it more denser than water. It is more like an empty cup and holds lots of air in the space between the ship.

As the air has no weight it can lower down the overall density of the ship which pushes the water away making it float in water.