Calculating Density

The video tutorial explains the concepts of mass, matter, and density. It describes how the mass of an object is a measure of the matter it contains, and how density is the mass within a certain volume. The tutorial compares the densities of different materials, such as steel, foam, and air, and explains how these densities relate to water. It also covers the concept of buoyancy, explaining that objects with a density greater than water will sink, while those with a lesser density will float.

What is buoyancy and how is it determined by an object's density?

What will happen to steel coins when they are thrown into water? Explain why.