Densidad: cómo se calcula y por qué algunos materiales flotan

The video tutorial explains how the mass of a train car increases with more people inside, while its volume remains constant, leading to increased density. It discusses the concept of density, comparing steel's density to that of foam, air, and water. The tutorial highlights that objects with a density greater than water will sink, while those with a lower density will float, using steel coins as an example.

What will happen to an object with a density greater than water when placed in water?

Why do steel coins sink when thrown into water?