| 100% | FLASKS | 6 | Flat-bottomed glass jars used in experiments |
| 60% | TESTTUBE | 8 | Glass vessel used in experiments |
| 57% | TESTTUBE | 8 | Glass vial used in science experiments |
| 56% | TESTTUBE | 8 | Cylindrical glass vial used in science experiments |
| 47% | MASON | 5 | Glass jar used for preserving food |
| 47% | GUINEAPIG | 9 | Person used in experiments |
| 47% | LABRAT | 6 | Animal used in experiments |
| 46% | LAB | 3 | With 39-Across, rodent used in experiments |
| 46% | RAT | 3 | Lab ___ (animal used in experiments) |
| 45% | LABRATS | 7 | Rodents used in experiments: 2 wds. |
| 45% | MASON | 5 | Type of jar used in canning |
| 44% | MASON | 5 | Glass jar used to hold drinks or fruit preserves |
| 44% | BEAKER | 6 | Glass container used in laboratories |
| 43% | BEAKER | 6 | Flat bottomed container in a lab |
| 43% | BEAKER | 6 | Glass receptacle used in chemistry lessons |
| 43% | MASONJAR | 8 | Glass container used in canning: 2 wds. |
| 42% | SILEX | 5 | Mineral used in glass production |
| 42% | TIREIRONS | 9 | Tools used in fixing flats |
| 42% | VARIFOCAL | 9 | Multipurpose lens used in glasses |
| 42% | MASON | 5 | Glass jars that hermetically seal in boiling water |
| 42% | LIDLESS | 7 | Like jars used as drinking glasses |
| 42% | RATS | 4 | Rodents sometimes used in lab experiments |
| 42% | BELLOWS | 7 | Air blasters used in glass furnaces |
| 42% | FLUTES | 6 | Glasses used in orchestra |
| 41% | PYROMETER | 9 | Remote-sensing thermometer used in glass furnaces |
| 40% | TIREIRON | 8 | Tool used in changing a flat (2 wds.) |
| 40% | DOWELS | 6 | Short wooden rods that are used in flat-packs |
| 39% | MARBLES | 7 | Speedy glass balls used in playground games |
| 39% | SLATE | 5 | Flat rock used in old schoolrooms |
| 38% | LEYDEN | 6 | Kind of jar in lab experiments |