Terrestrial Planets {Ans: Mercury, Venus, Earth, Mars}Ganymede {Ans: Largest moon in the solar system}Meteoroid {Ans: A chunk of rock or dust in space}New Moon {Ans: A moon that is completely dark because it's unlit side is facing Earth}Revolution {Ans: The movement of an object around another object}Mars {Ans: The 'Red Planet'}Neptune {Ans: Appears blue through a telescope and experiences no seasons}Pluto {Ans: Now a dwarf planet, but previously considered the ninth planet from the Sun}Oort Cloud {Ans: A spherical region of comets that surrounds the solar system}Mercury {Ans: This is the smallest planet in our solar system.}Retrograde Rotation {Ans: The clockwise spin of a planet or moon as seen from above the planet's North Pole}Light Minute {Ans: The distance light travels in one minute}Rotation {Ans: The spinning of Earth on its axis}Meteor {Ans: A meteoroid that burns upon entry of the Earth's atmosphere}Asteroid {Ans: A relatively small and rocky object that orbits a star}Astronomical Unit (AU) {Ans: The average distance between the earth and the sun (approx 150,000,000 km)}Asteroid Belt {Ans: The region of the solar system between the orbits of Mars and