The density of the VOLUME of the ship is less than the density of the water it displaces (pushes out of the way). While the steel of a steel hulled ship is denser than water, the steel plus the air enclosed by the steel is less dense.
A ship floats on water due to a principle known as buoyancy. The weight of the water displaced by the ship is equal to the weight of the ship, allowing it to stay afloat. Essentially, the buoyant force exerted by the water is greater than the weight of the ship, keeping it on the surface.
a ship
Weight of ship = weight of (displaced) water.
The ship floats because of its large volume which displaces an amount of water that is more than its weight. That creates an upward force called buoyant force which keeps the ship on the surface.
a ship floats on the water and a submarine can go underwater and on top of the water
A stone sink in water because it is denser than water and displaces less water than its weight. A ship, on the other hand, is designed to displace a greater volume of water than its weight, allowing it to float on the water's surface. Additionally, the shape of a ship's hull and the air it contains also contribute to its buoyancy.
PLANKTON
Tides.
A ship floats due to buoyancy, which is determined by the weight of the water displaced by the ship, not by the depth of the water. As long as the weight of the ship is less than the weight of the water it displaces, it will float at the same level regardless of the depth of the water.
a green liquid
The principle of Displacement gives 'rise' to buoyancy. When a ship is put upon water with a cargo weight less than the weight of water that the fully loaded ship displaces, it will float.
The basic reason that a ship floats is that the enclosed volume in the ship's hull is greater than the volume of water which has the same mass as the ship.