1. Red Planet   Mercury   Mars   Pluto   Jupiter   Hint Half-n-half Clue   2. Planet, besides Jupiter, that has storms as revealed by dark spots   Uranus   Neptune   Saturn   Pluto   Half-n-half Clue   3. Planet with fastest orbiting speed around the Sun   Pluto   Jupiter   Mercury   Earth   Half-n-half Clue   4. Planet with most-tilted axis that seems to spin on its side   Neptune   Jupiter   Saturn   Uranus   Half-n-half Clue   5. Largest planet of our solar system   Uranus   Jupiter   Saturn   Neptune   Half-n-half Clue   6. Least dense planet of our solar system   Jupiter   Earth   Pluto   Saturn   Half-n-half Clue   7. Smallest planet of our solar system   Mercury   Venus   Mars   Pluto   Half-n-half Clue