7th Grade Science Worksheets With Answer Key Pdf. A worksheet, in the word’s original meaning, is a sheet of paper where one performs work. It is a printed page that a child completes with a writing tool. No additional materials are needed. It’s”a sheet of paper where work schedules, working time, special instructions, etc. are listed. A piece or scrap of paper about which problems, ideas, or so on, are put down in tentative form.” In education, a worksheet may have questions for pupils and places to document answers. In accounting, a worksheet is, or has been, a sheet of paper with rows and columns where an accountant may record data or perform calculations.