| PARAMORPHS | They are formed by a change in molecular structure without change of chemical composition (10) |
| TRAINTUNNELS | Choo! Choo! They are formed by blasting mountains: 2 wds. |
| DRYSTONEWALLS | Bounding structures without mortar (3,5,5) |
| SEEDS | Botanically they are formed in ovaries; commercially they are sold in packets! (5) |
| PARALLAX | The observed displacement of an object caused by a change in the observer's point of view (8) |
| FIANCE | One who has fallen in love is revealed by a change in face (6) |
| SANDDUNES | They are formed of many particles raised along the shore (4,5) |
| TREASURES | Values firm externally impacted by a change in rates (9) |
| FIVEPENCES | I have first of phone receivers - without change (10) |
| PUTONTHEDL | Sidelined by injury, in baseball lingo, and a hint to how this puzzle's theme puns are formed |
| ISOTHERMAL | Mother ails, shivering - but without change in temperature? |
| HELIXHELIX | Molecular structure |
| TRICYCLIC | Of a chemical compound, having three interconnected rings of atoms in its molecular structure (9) |
| LATENT | ____ heat, that required to change solid to liquid or liquid to gas without change of temperature (6) |
| STEROID | Fat- soluble organic compound such as a bile acids or D vitamin, characterised by a molecular structure of 17 carbon atoms arranged in four rings (7) |
| ISOMETRIC | In maths, without change of shape or size |
| MINERAL | The name for a naturally occurring solid with a definite chemical composition and a highly ordered atomic arrangement. |
| ESPERANTO | Language in which plurals are formed by adding -oj |
| ANGLES | These are formed by two lines extending from the same point |
| SHELLCOMPANIES | Corporations with little business activity, and what are formed by the circled letters |
