1. record of daily activities.   iota   virus   log   incline   Hint Half-n-half Clue   2. speed or rate of motion.   velocity   incline   orifice   slag   Half-n-half Clue   3. mental disorder.   vent   psychosis   uniformity   spectrum   Half-n-half Clue   4. optical illusion due to atmospheric conditions.   whorl   mirage   objective   yield   Half-n-half Clue   5. change or introduction of novelties.   innovation   matrix   inconsistency   propellant   Half-n-half Clue   6. layer of earth's crust or society.   yield   penumbra   stratum   innovation   Half-n-half Clue   7. twisting force producing rotation.   mammal   vise   torque   microcosm   Half-n-half Clue