Earth - 3rd planet from the sun; 4,5 billion years old; only planet that has life, The Sun - the star at the center of the solar system; largest object in the solar system, Milky Way - galaxy of stars that contains our solar system, inner terrestrial planets - Mercury, Venus, Earth, and Mars, outer gas giants - Jupiter, Saturn, outer ice giants - Uranus, Neptune, Mercury - planet nearest to the Sun, doesn't have a moon and takes 180 days orbit the sun., Venus - 2nd planet from the Sun, similar to Earth, Mars - 4th planet from the Sun; the red planet, Jupiter - 5th planet from the sun; largest planet in the solar system; has 63 moons, Saturn - 6th planet from the Sun; 7 rings around it; 2nd largest planet; made of gases, but it has a solid inner core. , Uranus - 7th planet from the Sun; the coldest planet in the solar system; spins on its axis parallel to its orbit; 27 moons, Neptune - the 8th planet in our solar system; the blue planet because of a sea of methane gas; 13 moons.It has 14 known moon. , Pluto - once considered the 9th planet; reclassified as a dwarf planet because its orbital characteristics are very different from the other planets., Asteroid Belt - place in our solar system between Mars & Jupiter where small bodies – mostly rocky and some metallic – orbit the Sun., Meteor - a small body of matter from outer space that enters Earth's atmosphere, becoming incandescent as a result of friction and appearing as a streak of light., Comet - cosmic snowballs of frozen gases, rock and dust that orbit the Sun,

The Solar System

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