| SKIMMING | Removing a substance from the surface of a liquid (8) |
| SKIM | Remove (a substance) from the surface of a liquid (4) |
| OPENCAST | ____ mining, the technique of extracting rock or minerals from the surface of the ground (4,4) |
| SKIMMERS | Utensils for lifting cream from the surface of milk; boaters; or, darters (8) |
| MENISCUS | Curved upper surface of a liquid in a tube resulting from surface tension (capillarity) (8) |
| BAYBERRYWAX | Substance removed from the surface of the fruit of the shrub Myrica faya and used in the manufacture of candles |
| RETENTION | Failure to eliminate a substance from the body |
| SCURF | A thin flake of dead epidermis shed from the surface of the skin (5) |
| EXOSTOSIS | An abnormal bony outgrowth from the surface of a bone (9) |
| NOVA | Explosion from the surface of a white dwarf |
| LUSTRE | Manner in which light is reflected from the surface of a mineral (6) |
| POLYPS | Small vascularised growths arising from the surface of a mucous membrane |
| GROUNDWATER | H2O beneath the surface of the soil, consisting largely of moisture that has seeped down from the surface: the source of springs and wells (6,5) |
| CILIA | Hairlike structures that extend from the surface of many cells; they can create movement of surrounding fluid. |
| FOAM | A mass of small bubbles of gas formed on the surface of a liquid (4) |
| RENNET | Substance from the stomach of a calf, it contains an enzyme essential in the production of Cheshire cheese (6) |
| MINERAL | Word, from "ore" and the name of a deep dark place where treasures are unearthed or found, for aventurine, cinnabar, hyacinth, peridot, quartz or other solid homogeneous inorganic substance from the m |
| SCUM | A layer of impure matter that forms on the surface of a liquid (4) |
| DEPTH | The distance from the surface to the bottom of a pool (5) |
| QUININE | What substance from the bark of a tree was once the only known remedy for malaria? (7) |
