Question

Why is cold not a matter but cold drink is?

Answer 1

The classical four states of matter that signify the existence of any object in the form of matter can exist as either solid, liquid, gas or plasma. All the states of matter also have interchangeable properties, which means one form of matter can be transformed into another and vice versa.

Complete answer:
-Matter is defined by the composite of atoms or substances around the world or the universe we exist in. -Matter is anything within our surrounding and even living systems, composed of mass and volume, which means matter has some form of weight attached to it that enables its existence.
-Cold is a form of physical description defining temperature, wherein lower temperature in either the Kelvin or Celsius scale determines how cold a surface or surrounding can be. Since, cold is an expression of measurement or qualitative expression for quantitative dropping of temperature value, it is not a form of matter.
-Cold drink is an aerated drink made up of carbonated soda water with flavour which has to be kept in refrigeration at under 10oC or 283K for better shelf-life. The name cold drink suggests that the beverage is served at a colder temperature. Since the drink is liquid in nature, it is a form of matter.
-Any liquid form of matter has certain properties associated with it including temperature, pressure, volume occupied, viscosity, flow-rate etc. Similarly in case of cold drinks, all of these properties are associated. Temperature is an essential form of cold drink property, which suggests that the core temperature of the liquid body is lower than the normal atmospheric temperature.
-Thus, cold drink is a form of matter, unlike cold which is an expression for lower levels of temperature.

Note:
States of matter have various physical, chemical and mathematical properties associated with it which governs their functions and existence.