Question

explain how a ship made of steel can floats on water but a steel needle sinks

Answer 1

Because the density of the ship is low than the water while a steel needle has more density than water, hence ship floats while needle sinks.

Hope it will help u.

Answer 2

a ship made of steel can float on water but a steel needle sinks because steel ship is hollow from down as per the flotation it can float and needle cannnot