Extra Credit Planet Trivia Crossword

This planet has the strongest gravitational pull to the Sun
This planet has the strongest gravitational pull on its surface
Does not have any moons or rings and is similar in size to Earth
Was formed approximately 4.54 billion years ago and is the only known planet to support life
Has 14 moons and is the smallest of the ice giants
Has the coldest temperature of any planet and its moons are named after characters created by William Shakespeare and Alexander Pope
Named after the Greek god of the underworld and was reclassified from a planet to a dwarf planet in 2006
This keeps Earth and the other planets in our solar system in orbit around the Sun. It also keeps the Moon in orbit around Earth.
This scientist developed the Law of Gravitation
As this increases, gravity decreases.
As this increases, gravity increases
Time it takes for a planet to make one complete orbit around the sun
The mass of the planets is measured in this unit