Basic Atomic structure Worksheet Answer Key. A worksheet, in the word’s original meaning, can be a sheet of paper on which one performs work. It is a printed page that a child finishes using a writing instrument. No other materials are needed. It’s”a sheet of paper on which work schedules, working time, special instructions, etc. are recorded. A bit or scrap of paper on which issues, thoughts, or so on, are put down in tentative form.” In schooling, a worksheet could have concerns for students and places to document responses. In accounting, a worksheet is, or has been, a sheet of paper with columns and rows where an accountant may record data or perform calculations.