Why is it important for scientists to study the macroscopic properties of matter?

Macroscopic and microscopic properties of matter are related to each other. Macroscopic properties arise from microscopic properties. A property is microscopic if it deals with structure at the atomic level. An example of a microscopic property is the way sugar molecules interact with each other—the intermolecular forces of attraction present between molecules. A related macroscopic property is viscosity. Viscosity is a liquid's resistance to flowing. Honey is viscous because of how sugar molecules interact with each other. The main difference here is that we can easily observe macroscopic properties. 

Macroscopic properties are properties that arise from a collection of molecules and are the type of properties that we can actually observe.

It is important to study these properties because they are related to daily life. Viscosity is a far more significant property than intermolecular forces when cooking. In the same way, the volume and density of gases is something that needs to be understood in order to make balloons, but these macroscopic properties result from microscopic movement of gaseous atoms and molecules.

In brief, then, macroscopic properties are important because these are the properties humans actually apply to their daily lives. As a result, macroscopic properties are characterized because these are the ones that have immediate effects and applications to human life. It is just as important, however, to study microscopic properties, as microscopic properties are what give rise to macroscopic properties. Diseases are cured at the microscopic level. For instance, creating a drug for a protein necessitates the analysis of the protein structure and the atomic interaction between the drug and the target.