| 100% | SCUM | 4 | Gunky stuff on the surface of a pond |
| 69% | LILYPAD | 7 | Plant floating on the surface of a pond: 2 wds. |
| 65% | SCUM | 4 | Layer of froth on the surface of a pond |
| 58% | RHUMB | 5 | Curve on the surface of a sphere |
| 58% | CAMBER | 6 | Curvature on the surface of a road |
| 58% | SCUM | 4 | Film on the surface of a liquid |
| 58% | DENTS | 5 | Flaws on the surface of a can |
| 58% | TOPPER | 6 | Decoration placed on the surface of a cake |
| 57% | SCUM | 4 | Unwanted frothy layer on the surface of a liquid |
| 57% | FOAM | 4 | Stuff on the top of a cappuccino |
| 57% | HAIR | 4 | Stuff on the floor of a barbershop |
| 55% | DUCKWEED | 8 | Floating water plant found on the surface of ponds |
| 54% | SOOT | 4 | Dirty stuff on the inside of a chimney |
| 54% | FOAM | 4 | Frothy stuff on the crest of a wave |
| 52% | ADSORBS | 7 | Gathers on the surface, as a layer of molecules |
| 49% | ONTO | 4 | On the surface of |
| 49% | ATOP | 4 | On the surface of |
| 49% | FRESCO | 6 | The art of painting on a moist plastered surface |
| 46% | BOB | 3 | Bounce, as on the surface of water |
| 46% | MAR | 3 | Damage the surface of a car, say |
| 46% | MAR | 3 | Scratch the surface of a car, say |
| 46% | ICE | 3 | Surface of a frozen pond |
| 45% | ADRIFT | 6 | Floating untethered on the surface of the sea |
| 45% | CRATER | 6 | Big depression on the surface of the Moon |
| 45% | RIPPLES | 7 | Small waves that appear on the surface of water |
| 45% | MOON | 4 | Twelve people have walked on the surface of it |
| 45% | SEL | 3 | Fleur de ___ (delicate crust on the surface of seawater) |
| 45% | SCARIFIER | 9 | Spiked tool breaks up the surface of a lawn |
| 44% | ONEG | 4 | Downward force felt on the surface of the earth, informally |
| 44% | AREA | 4 | Sphere ... or 4πr^2, for the surface of a sphere |