1. symmetry   primary type used as model.   substance that causes solid matter in solution to deposit.   pattern with balance or harmony.   flying reptile now extinct.   Hint Half-n-half Clue   2. objective   target or goal.   center of turbulence or whirling motion.   tendency to drive back or distaste.   coloring agent.   Half-n-half Clue   3. parasite   substance or liquid that dissolves solute.   speed or rate of motion.   tool with jaws for holding work.   animal or plant living in or on another; sycophant.   Half-n-half Clue   4. strut   supporting bar in framework or pompous walk.   green coating on old bronze.   tool for pounding or grinding in a mortar.   smallest particle of a substance with all its properties.   Half-n-half Clue   5. vertex   substance or liquid that dissolves solute.   sleeplessness.   topmost point or summit.   speed or rate of motion.   Half-n-half Clue   6. synthesis   missile or shell.   change of form, character or circumstances.   residue from smelting operation.   combining elements to produce whole system.   Half-n-half Clue   7. indices   substance that helps propel or push forward.   animal with four feet.   representation on a miniature scale.   pointers or indications.   Half-n-half Clue