| 100% | LITMUS | 6 | Particular paper that tests acids and alkalis |
| 36% | KEY | 3 | Paper that has the answers for a test |
| 35% | LITMUS | 6 | Type of paper that acids turn red |
| 35% | CHEMICALLY | 10 | How acid & and alkali react |
| 33% | CURRENCY | 8 | Paper money and coins that might be foreign |
| 32% | LSAT | 4 | Future attorney's exam that tests both analytical and logical reasoning (abbr.) |
| 32% | NYT | 3 | Manhattan-based paper that publishes "Wordle" and "Connections": Abbr. |
| 32% | STUNTDOG | 8 | Lab that performs tests of speed and agility? |
| 32% | HANGMAN | 7 | Pen and paper game that ends with execution |
| 32% | ORALS | 5 | Exams that don't need pen and paper |
| 31% | CONFETTI | 8 | Small pieces of paper and plastic that are thrown |
| 31% | LITMUS | 6 | Acid-test paper |
| 31% | TIE | 3 | Test cricket result that has occurred only twice; in 1960 and 1986 |
| 31% | XXXXXXX | 7 | Retailer that sells things like toner, paste, files and paper |
| 31% | PCR | 3 | COVID test that's not rapid and is more accurate |
| 30% | KAZOO | 5 | Instrument that might be made with a comb and wax paper |
| 29% | PETSCANS | 8 | Medical-imaging tests that are, aptly, sometimes used on cats and dogs |
| 29% | SINGLESTREAMING | 15 | Recycling option that collects paper, plastics and metals together [2010s to present] |
| 29% | CITRATE | 7 | Salt that can be derived from the acid in lemons and limes |
| 29% | ELECTRICAL | 10 | Branch of engineering that is concerned with designing and testing e-devices |
| 29% | DUMMY | 5 | American invention that looks like a mannequin and is central to crash tests |
| 28% | CRAFT | 5 | With 48-Down, room that might be stocked with construction paper and glue guns |
| 28% | CALC | 4 | Math class that has "AB" and "BC" AP tests, for short |
| 27% | RAG | 3 | Paper that dishes dirt |
| 27% | SUBPOENA | 8 | Paper that requires reporting |
| 27% | MAP | 3 | Paper that gives directions |
| 27% | ESTER | 5 | Acid and alcohol compound |
| 27% | ESTER | 5 | Acid and alcohol yield |
| 27% | IOUS | 4 | Papers that acknowledge debts |
| 27% | MASTERCHEF | 10 | Cooking competition show hosted by 40-Across that features a Mystery Box and a Pressure Test |