What is defined as anything that occupies space and has weight?

The definition of anything that occupies space and has weight corresponds to the concept of matter. Matter is a fundamental concept in physics and chemistry, as it encompasses all physical substances, including solids, liquids, gases, and plasma. It is characterized by its physical presence, which allows it to take up space (volume) and possess mass (weight).

Mass refers specifically to the amount of matter in an object, but it does not encompass the totality of matter's characteristics. Force relates to the interaction that can change the motion of objects and is not defined by weight or spatial occupation. Energy refers to the capacity to perform work or produce change and does not have weight or occupy space in the same way that matter does. Thus, when considering the correct answer, matter is the only term that fully describes an entity that occupies space and has weight.