| Answer | Crossword Clue |
|---|---|
| SCUM | Film on liquids. |
| SPUME | Frothy stuff on liquids |
| SCUM | Impurities on top of liquids. |
| TSA | Org. that restricts liquids on flights |
| spumous | frothy matter on liquids foam scum ocean spume |
| LIBATIONS | Liquids poured on the ground in honor of deities. |
| TSA | Org. with a 3-1-1 rule for carry-on liquids |
| hydrodynamics | The branch of science concerned with forces acting on or exerted by fluids (esp. liquids) |
