What term describes anything that occupies space and mass?

The term that describes anything that occupies space and has mass is "matter." Matter includes all the physical substances that make up objects in the universe, from the air we breathe to the earth beneath our feet. It can exist in various states, including solids, liquids, and gases, and is characterized by its ability to have a defined volume and mass.

Energy, while a crucial component of physical interactions, does not occupy space or have mass in a traditional sense. It is the capacity to do work or produce change but does not consist of physical material. Force refers to an interaction that causes an object to change its velocity or direction and is not a substance that occupies space. An atom is the basic unit of matter but is just one of the many forms that matter can take; it does not encapsulate the broader concept that matter represents.

Thus, matter is the most comprehensive term that fits the definition of occupying space and having mass.