A Family Of Planets Crossword

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QUESTIONS LIST: Eclipse: an event in which the shadow of one celestial falls on another., Satellite: a natural or artificial body that revolves around a planet., Phases: the change in the sunlit area of one celestial body as seen from another celestial body., Meteor: a bright streak of light that results when a meteoroid burns up in Earth's atmosphere., Comet: a small body of ice, rock, and cosmic dust that follows an elliptical orbit around the sun and gets tail as it passes the sun., Meteorite: a meteoroid that reaches the Earth's surface without burning up completely., Gas Giant: a planet that has a deep, massive atmosphere, such as Jupiter, Saturn, Uranus, or Neptune., Astronomical Unit: the average distance between the Earth and the sun; approximately 150 kilometers., Meteoroid: a relatively small rocky body that travels through space., Terrestrial Planet: one of the highly dense planets nearest to the sun; Mercury, Venus, Mars, and Earth., Prograde: a clockwise spin of a planet or moon as seem from above the plants North Pole., Retrograde: the counterclockwise spin of a planet or moon as seem from above the plant's North Pole; rotation in the same direction as the sun's rotation., Inner Planet: any of the four planets closest to the sun: Mercury, Venus, Earth, or Mars., Outer Planet: any of the four planets with orbits outside the orbit of Mars, namely, the planets Jupiter, Saturn, Uranus, and Neptune., Ptolemy: Earth center of the universe; around 127-141 A.D., Copernicus: 1200 A.D.; developed the Heliocentric Theory., Newton: Universal Law of Gravity