What is human capacity for 6th grade Science?

Human capacity is the ability of an individual to do or accomplish a certain task based on the individual's knowledge, skills and abilities, moreover, the person's overall intelligence, emotion and affect, personality, characteristics and behavior on a particular task.

Human capacity is greatly subjected to the person's either biological, psychological and mental state which can influence the person's drive, motivations, goals and response which guide and reflect his overall performance.