1. millimeter, _______ , decimeter, meter   centimeter   nanometer   decameter   kilometer   Hint Half-n-half Clue   2. Earth, Jupiter, _______ , Pluto   Mars   Uranus   Mercury   Venus   Half-n-half Clue   3. egg, _______ , pupa, butterfly   larva   spawn   tadpole   cocoon   Half-n-half Clue   4. heel, knee, chest, _______   waist   ankle   foot   neck   Half-n-half Clue   5. North Pole, Arctic Circle, _______ , Equator   Tropic of Cancer   Tropic of Capricorn   Antarctic Circle   South Pole   Half-n-half Clue   6. amble, _______ , jog, run   walk   creep   crawl   sprint   Half-n-half Clue   7. bat, sheep, _______ , elephant   rat   horse   blue whale   squirrel   Half-n-half Clue