Why do big ships made of steel float in water while a little ball of steel sinks?
A little solid ball sinks because it is small and does not displace enough. Ships float because they displace the same amount of water as what it weighs. [When you go in the bath, the water rises because your body is taking up the space] When the ship is in the water, it too makes the water rise, also it is barely noticeable. Also ships floats because they have a large empty space inside which decreases its density. For example, if the ship was solid metal, it would sink. But the weight of the ship is spread over a large area of water.
